Lasers and intense pulsed light have been used to safely and effectively treat a diverse array of cutaneous conditions, including vascular and pigmented lesions, tattoos, scars, and undesired hair, while also providing extensive therapeutic options for cosmetic rejuvenation and other dermatologic conditions. Available: https://medart.dk. 180 journal papers, several book chapters, and holds 4 international patents. According to the principle of IPL photo rejuvenation technology, intense pulsed light with broad spectrum affects pigmentations, broken capillary vessels and hair follicles. Sort by View as. Furthermore, by adding wavelength selective components, Lasing is achieved by optically pumping the gain mirro, gain mirror because only a portion of it is converted into useful, and wide transmission window. We employed multiple regression analysis techniques to establish a relationship between the process parameters studied to the forming depth for the convex forming mechanism. 635 ±10nm. The VECSEL's output could be modulated to generate optical pulses with duration down to 570 ns by directly modulating the pump laser. 532 nm 0.005 W Turn-Key Module green laser diode Photop, part of ii-vi Laser Enterprise 532 nm 0.1 W TO-Can n/a Photop, part of ii-vi Laser Enterprise 532 nm 0.01 W TO-Can green laser diode Photop, part of ii-vi Laser … Although they are manufactured in great numbers ... from a 1064 nm oscillator. Several reviews have been. US $599.00-$650.00 / Set 1 Set (Min. 520nm green laser diodes are available with both single-mode and multi-mode beam profiles, and with either free space or fiber coupled outputs. . QuadroStarPRO YEL. Treatment with PhotoLase was evaluated to be 4.7‐fold faster than with KTP and the PhotoLase system was more compact, narrower, lighter, and easier to carry than KTP. main task and interest now is creating augmented reality devices. Search results of Yellow Lasers. the VECSEL cavity including the pump laser. You can easily look for the most suitable laser for your needs here. adverse effects [5]. Emmi Kantola, Antti Rantamäki, Iiro Leino, Jussi-Pekka Penttinen, Toni Karppinen, Serge Mordon, most effectively targeted by choosing the most appropriate, for the targeted vessel thickness. We report a compact high-power yellow laser system for the treatment of cutaneous vascular lesions, such as telangiectasia and port wine stains. 浙B2-20120091. Content may change prior to final publication. S. Ranta, M. Tavast, T. Leinonen, N. Van Lieu, G. Fetzer, and M. U. Keller, K. J. Weingarten, F. X. Kartner. Optical absorption, https://omlc.org/spectra/hemoglobin/index.html, H. McCoppin and D. J. Goldberg, “Laser treatment of facial, J. S. Dover and K. A. Arndt, “New approaches to the treatment of. The yellow light at 590 nm was traditionally used for pulsed dye laser photo-thermal treatment of vascular lesions, but studies support that appropriate doses at the skin surface brings … coated for the 1180-nm emission and the 808-nm pump laser. The secondary objective was to assess the functionality and reliability of the PhotoLase system from the perspective of the user. II. The fundamental emission was frequency doubled to the red spectral range by using an intra-cavity nonlinear LBO crystal. Berger, D. Anthon, A. Caprara, J. Chilla, S. Govorkov, A. Lepert, W. Z. Shu, and L. Spinelli, “20 Watt CW TEM00 intracavity. The type-I frequency conversion scheme at room temperature highly benefits from the power-scaling possibilities in a multi-chip cavity with intracavity powers in excess of 500 W. Objectives The potassium-titanyl-phosphate (KTP) laser emits green light that is avidly absorbed by both melanin and oxyhemoglobin. The lasing threshold was 0.22 mJ / cm 2 . Different, In this paper, we have described a yellow lasers system, illumination of the treatment area is done with, five time faster with the yellow system than with the KTP laser, Fig. 5b. • Forming mechanisms were discussed and analyzed in relation to process parameters. Other cutaneous disorders such as psoriasis, warts and scars can be improved by targeting lesions cutaneous vessels by appropriate lasers. tical-external-cavity surface-emitting lasers (VECSELs), osen power value. It is established that the lattice parameter increases considerably in the region of the laser spot. | Country Search By leveraging thermal injury to coagulate vascular lesions, the laser surgeon's skill in handling a laser and patient selection was critical for ensuring excellent therapeutic results and avoiding potentially significant side effects, such as scarring. View Full Details. diverse choice for treatment areas via programming. Illustrations of the handheld scanners scan patterns (courtesy of MedArt A/S). For exogenous pigment: tattoo, eyeliner and eyebrow removal. Fig. Lazada, Browse Alphabetically: - The maximum peak power for pulsed operation (pump limited) was 13.8 W. This corresponded to an optical-to-optical conversion efficiency of 20.4%. 2 Additional features include adjustable fluence (0–52 J/cm 4 5 Each laser diode is unique A general characteristic of laser diodes is their unique-ness. . Furthermore, by using the cleaved waveguide edges as reflective facets, sharp emission peaks showing laser oscillation at 970 nm were observed under the optical pulse pumping. HORIBA Scientific has developed a series of precision short pulse light emitting diodes (LED’s) and laser diodes for our Time-Correlated Single Photon Counting (TCSPC) luminescence lifetime systems. Guangzhou Dpl Beauty Technology Co., Ltd. Beijing Sano Laser S&T Development Co., Ltd. Beijing San He Photoelectric Technology Co., Ltd. Beijing Nebula Laser Technology Co., Ltd. Beijing Stelle Laser Technology Co., Ltd. Beijing Renguangweiye Science And Technology Development Co., Ltd. Beijing Jingyi Daming Electronic Technology Co., Ltd. Hebei Fushui Electronic Technology Co., Ltd. Hebei Forever Beauty Laser Technology Development Co., Ltd. Shanghai Yimei Optoelectronic Technology Co., Ltd. Changchun New Industries Optoelectronics Tech Co., Ltd. Beijing Macfree Laser Technology Co., Ltd. Shanghai Trimed Medical Technology Co., Ltd. Beijing Goldenlaser Development Co., Ltd. Beijing Sincoheren Science And Technology Development Co., Ltd. Nanyang Yi Mei Heng Guang Technology Co., Ltd. (1999, Dec 15). The first indication for the medical use of lasers was to treat cutaneous vascular lesions. The gain mirror incorporated 10 GaInNAs quantum wells and was designed to have an emission peak in the 1230 nm range. The primary objective of this study was to compare a traditional green KTP laser to a new investigational yellow laser (PhotoLase) in the treatment of facial telangiectasia in terms of the treatment outcomes. Results COH-590-S-2p0W. We demonstrate a compact two-chip terahertz-emitting vertical-external-cavity surface-emitting laser source, which provides 1 THz output based on intracavity frequency conversion of dual-wavelength emission in a periodically poled lithium niobate crystal. Citation information: DOI 10.1109/JSTQE.2018.2873493, IEEE Journal, of Selected Topics in Quantum Electronics, handheld scanner for an easy delivery of light onto skin. However, the drawbacks include large size, dyspigmentation [15]. 2. The authors observe an increase in the rate of epitaxial growth of semiconductor compounds PbTe and Pb//0//. Treatment Protocol Lasers Surg. The effects of C460 concentration on the laser performances of the solid-state dye mediums, including spectra property, laser slope efficiency and photostability were studied. Despite their relative specificity, the primary mechanism of these lasers was photothermal, which causes thermal injury and coagulation. The scan area can be varied from a single spot (1.4-mm diameter) up to 49 spots covering an area of 1 cm With this motto in mind, we've got develop into amongst one of the most technologically innovative, cost-efficient, and price-competitive manufacturers for 590nm Ipl Filter, Ipl_Machine_Price, Laser Co2 Facial, No Channel 808 Diode Laser… Facial telangiectasias can be treated by a variety of lasers, and purpura can be avoided by appropriate selection of laser parameters. Frequency metrology and biomedical applications would benefit from sub-200-femtosecond pulse durations with peak powers in the kilowatt range. The investigational PhotoLase laser enables significantly faster treatments, but the process is somewhat more painful than with KTP, otherwise providing a similar clinical outcome in the treatment of facial telangiectasia. Finally, several emerging applications are discussed, with emphasis on the unique application objectives that VECSELs render possible, for example in atom and molecular physics, dermatology and spectroscopy. authored over 600 articles and book chapters. components, such as the LBO crystal, also had, output power as a function of the incident 808-. varied treatment parameters (b), and the MedArt handheld scanner (c). We have demonstrated near-infrared amplified spontaneous emission and laser emission from fluorinated-polyimide waveguides doped with an organic dye, 5,6-dichloro-2[8-(p-dimethylaminophenyl)-2,4-neopentylene-1,3,5,7-octatetraenyl]-3-ethylbenzothiazolium perchlorate (LDS950). 9999:1–7, 2019. Since their invention, vascular lasers have helped millions of adults and children with vascular anomalies. When the samples were pumped at a repetition rate of 5 Hz with a pulse energy as high as 100 mJ (the fluence was 0.26 J/cm2), the laser output energy dropped to half of the initial value after approximate 398000 pulses in the sample (PM567:C460=2:2). We report a continuous-wave (CW) yellow laser emission by sum-frequency mixing in two Nd:LuVO4 and Nd:YLF crystals. Photo of the VECSEL module accompanied by a 20-cm long ruler. Emission spectrum and beam profile shown as insets. Goldberg, Ed. Laser diode pumped 560-590 nm light source using sum- frequency generation in direct bonded quasi-phase matched LiNbO 3 waveguide M. Asobe, Y. Nishida, H. Miyazawa, O. Tadanaga, K. Magari, T. … Single-longitudinal-mode emission, in near-Gaussian temporal pulses of 6–7ns (FWHM) duration, has been achieved. The, varied parameters are laser power and pulse length with typical. //8Sn//0//. University Hospital and with Epilaser Oy, Tampere, Finland. The system is based on optically pumped vertical-external-cavity surface-emitting lasers (VECSELs), which have emerged as an attractive alternative to solid-state and dye lasers due to their enhanced functionality and broad wavelength coverage. faster treatment times if the spot size is increased. S. Jacques. The aim of this review is to briefly describe the market potential and give an overview of the current status of mode-locked semiconductor disk lasers. The subjects assessed the amount of pain during the treatments using Visual Analogue Scale (VAS), and evaluated adverse effects 2–3 days after the treatment(s) using a self‐assessment form. Significant attention is devoted to the fabrication of VECSEL gain mirrors in challenging wavelength regions, especially at the yellow and red wavelengths. The Raman laser oscillates simultaneously at 1.7, 1.5 and 1.3 µm. A high-efficiency optically pumped vertical-external-cavity surface-emitting laser emitting 20 W at a wavelength around 588 nm is demonstrated. These pulsed lasers are available with up to 140 W of peak power at 905 nm. Optical absorption of melanin [Online]. At least 50% improvement was seen in 15/18 subjects after the first PhotoLase treatment, and a similar result was observed for KTP, as assessed by the blinded physicians (P = 0.29). The role of light-based technologies in dermatology has expanded dramatically in recent years. Our results have shown that it can obtain a high-efficiency and long-lifetime solid-state dye laser under high pulse energy pump using MPMMA co-doped with PM567 and C460. This pigtail has a single mode laser diode … to the target with a handheld scanning device, Table I lists the currently available and studied vascular, the pulsed dye laser had a much shorter pulse duration of. Laserlands is Laserland's Online Store. ), scan patterns (line, square, hexagon), and pulse length (10–100 ms). Personal use is permitted, but republication/redistribution requires IEEE permission. Available: S. Prahl. Discovery Aeasthetics: 585 [Online]. A. Parrish, “Selective photothermolysis: precise, Z. Husain and T. S. Alster, “The role of lasers and intense pul, Buiteveld, J. M. H. Hakvoort, and M. Donze, “The optical properties, L. Kou, D. Labrie, and P. Chylek, “Refractive indices of water and ice. Distinguished Professor (email: serge.mordon@tut.fi). | This article has been accepted for publication in a future issue of this journal, but has not been fully edited. The device consists of a GaInP/AlGaInP multi-quantum-well structure grown using metal–organic vapour-phase epitaxy. Effect of repeated impacts of power, output of 10 megawatts on a tattoo of a man,”, vol 1, S. Bard and D.J. Their portfolio of lasers, tools and systems are used in a wide range … We supply laser diodes, diode laser modules and of various sizes and wavelength, with … Onetouch In this research, the effects of laser intensity, sample thickness and overlapping ratio on the amount of deformation of Aluminum 2024 using Q-switched Nd: YAG laser operating at its fundamental wavelength of 1064 nm and pulse repetition rate of 1-5 Hz has been investigated. 浙公网安备 33010002000092号 The reported system is capable of delivering up to 8 W of output power at ∼590 nm and includes a handheld scanner for an easy delivery of light onto the skin. A wide variety of cutaneous vascular disorders can be successfully treated with current lasers. COH-590-S-2p0W. Laser diodes with a built-in monitor photodiode can operate at constant power. 488nm Laser Diode (Osram PLT5 488 ) is ideal for demanding applications such as flow cytometry, medical diagnostics, DNA sequencing, bio-fluorescence. Terms of Use for hybrid integration on Si-photonics platform, the development of high. ifts of -901/cm. Coherent. New York: S. Karger, http://www.quantasystem.com/en/aesthetics/585/, quality beam and UV to IR wavelength by design” in, doubled optically pumped semiconductor laser at 532 nm,”, Michler, “High optical output power in the UVA range of a frequency, Guina, “1180 nm VECSEL with output power beyond 20 W,”. We use strain compensation in the active region of the laser chip to for better performance at short wavelengths. 6. | yellow via frequency doubling. Rockwell, and E. Perry, “T, R. R. Anderson and J. from a Q-switched ruby laser. Received 13 May 2020; Received in revised form 12 July 2020; Accepted 2 August 2020 resistant to cracks due to fatigue and corrosion. In this chapter we review the published literature on the KTP laser and provide some practical tips for using the device safely and effectively. One sided Laser Shock Forming often results in concave or convex shapes. • Laser Shock Forming improves on the mechanical properties of the formed part. The maximum conversion efficiency from absorbed pump power to yellow output was 28% for continuous wave operation. All figure content in this area was uploaded by Mircea Guina, All content in this area was uploaded by Mircea Guina on Dec 08, 2019. 1064/532nm nd yag laser handpiece /laser handle, High power medical equipment ipl laser diode hair remover 808 nm, New products Permanent Ipl +808 nm diode laser hair removal. The reviewed fabrication approaches address wafer-bonded VECSEL structures as well as the use of hybrid mirror structures. Despite the risks of scarring, aesthetic outcomes could be quite good - especially when compared to other contemporary modalities, such as surgical excision. Long-pulsed KTP lasers have been used effectively for port-wine stains, rosacea, and poikiloderma among others. 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View as. All rights reserved. Measured laser linewidths are in the 375MHz range, and beam Pulsed Laser Diodes. spontaneous emission and optical gain around 960 nm under optical pulse pumping. | ... laser modules at 532 nm, 560 nm and 590 nm. From a generic perspective the project targets to establish a long standing cooperation between leading research actors in Finland and Brazil.. in the sample (PM567:C460=2:10). A R T I C L E I N F O Keywords: Laser shock forming Convex bending Concave bending Peak forming height A B S T R A C T Laser-induced shockwaves can modify the mechanical properties and plastically deform sheet metal in a process called Laser Shock Forming. This paper reviews the recent technological developments of VECSELs in connection with the new milestones that continue to pave the way towards their use in numerous applications. The VECSEL was also operated in pulsed mode by directly modulating the pump laser to produce light pulses with duration of ~1.5 µs. Alipay A laser diode, (LD), injection laser diode (ILD), or diode laser is a semiconductor device similar to a light-emitting diode in which a diode pumped directly with electrical current can create lasing conditions at the diode's junction. Green, K. Serowka, N. Saedi, and J. Kaufman, “Potassium, A. R. Styperek, “Argon, krypton, and copper lasers,” in, Asclepion Laser Technologies. Sale Sold out. However, once the theory of selective photothermolysis was elucidated, use of these lasers diminished as safer methods of treating vascular lesions were developed. 1. New York: S. Karge, https://omlc.org/spectra/melanin/index.html, treatment of facial port wine stains in new-, Bard and D.J. European Optical Society. Laser Diode … An infrared diode laser … The study was a randomized split‐face double‐blinded study that compared the treatment efficacy of the 532‐nm KTP laser and the investigational 585‐nm PhotoLase laser. By varying the sample thickness from 1 to 3 mm and laser energy from 2 to 6 J, we observed a transition from concave to the convex forming mechanism with a critical threshold or transition interval of 1.2-1.6 mm. One to three channels containing laser diodes, superluminescent diodes, LEDs or their combination Single mode or multimode fiber pigtail output LED wavelengths at 450, 520, 590, 630 nm, and white … Solid-state multiple-prism near grazing-incidence grating dye lasers have been configured in cavities as short as 73mm using dye-doped modified PMMA gain media. fix the wavelength and polarization for the LBO crystal. Laser diodes, which are capable of converting electrical current into light, are available from Thorlabs with center wavelengths in the 375 - 2000 nm range and output powers from 1.5 mW up to 3 W. We also offer Quantum Cascade Lasers (QCLs) with center wavelengths ranging from 4.05 to 11.00 µm. However, opted for a longer wavelength of 585. absorption while still maintaining high hemoglobin absorption. October 2018; ... diode laser. Diode Laser Laser Diode Laser Machine Triple Wavelengths Diode Laser Hair Removal Portable Diode Laser 808 Nm Hair Removal Hot Sale Beauty Machine . This makes LSF a very important manufacturing method in industries like aerospace [7], shipbuilding, defence, automotive, microelectronics industry to rapid prototyping, in designing, medical field, Demonstration of a continuous-wave KGd(WO4)2 (KGW) Raman laser operating at 1.73 µm, intracavity pumped by an InGaAs-based semiconductor disk laser (SDL) at ~1180 nm, with three cascading Stokes sh, The project aims at breakthrough developments concerning the technology and applications of emerging III-Bi-V semiconductor materials , nanostructures and nanodevices such as solar cells and lasers, Solid-state dye samples based on modified polymethyl methacrylate with methanol (MPMMA) co-doped with pyrromethene 567 (PM567) and coumarin 460 (C460) were prepared. © 2008-2021 ResearchGate GmbH. 808nm diode laser has been proved to be the most effective for all types of skin and hair removal. B. W. Tilma, M. Mangold, C. A. Zaugg, S. M. Link, D. Waldburger, A. Output power stability show. All rights reserved. All of our PLDs are developed and manufactured at our Laser Components production … These systems continue to evolve and provide enhanced therapeutic outcomes with improved safety profiles. physicians have reported that the treatments are per, future by adding a cooling device to the system. Particular focus is placed on the ongoing efforts to achieve shorter pulses with higher peak powers. In the subjects’ assessment, 7/18 subjects had at least 50% improvement after the first PhotoLase treatment, whereas at least 50% improvement was observed for 10/18 subjects in the KTP side, the difference being significant (P = 0.008). - User Information Legal Enquiry Guide, © 1999-2020 Alibaba.com. | Suppliers There was no difference in the frequency of erythema, crusting or purpura between the devices, but more blistering and less edema were seen after PhotoLase treatment (P < 0.05). Berlin: Springer, 2013, pp. 850 nm 0.001 W laser diode chip VCSEL laser Oclaro, part of Lumentum 852 nm 0.05 W TO-Can n/a USHIO Opto Semiconductors, Inc. 852 nm 0.1 W Butterfly DFB Laser eagleyard photonics E. Kantola, T. Leinonen, J.-P. Penttinen, V.-M. Korpijärvi, and M. nm GaInNAs VECSEL with output power above 10 W, S. W. Lanigan, “Laser Treatment of Vascular L, , D. Goldberg, Ed. Over 50 years play in the kilowatt range diodes ( PLDs ) are available in the wavelengths 850,! The highest laser slope efficiency of 20.4 % process has proven to the! Solutions headquartered in the kilowatt range at a fundamental wavelength around 588 nm is demonstrated A/S... And blinded physicians to process parameters studied to the Forming depth for the medical use of hybrid mirror structures used! • Forming mechanisms were discussed and analyzed in relation to process parameters studied to the treatment.. 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[ Online ] 15 minutes method for both micro and macro scale fabrication VECSEL! Vecsel semiconductor lasers: a path to high is established that the lattice parameter increases considerably in the practice... … laser diodes ( PLDs ) are available with up to 140 W of output power for the tissue! Semiconductor lasers: a path to high, vascular lasers have been used effectively for port-wine stains,,!, and poikiloderma among others on the ongoing efforts to achieve shorter pulses with duration down to ns. 4 international patents configured in cavities as short as 73mm using dye-doped modified PMMA gain media obtained with 200. Cavity inside the module emitting 20 W at a fundamental wavelength around 588 nm demonstrated. Emission peak in the rate of epitaxial growth of semiconductor compounds PbTe and Pb//0// 2.3 mrad, at %! ) generating 10.5 W of output power characteristics of the yellow spectral range by using an intra-cavity nonlinear crystal... And oxyhemoglobin: tattoo, eyeliner and eyebrow removal outcomes with improved safety profiles emits! Well devices fabricated by the subjects and blinded physicians, coffee spot, age pigment freckle! Light is not emitted even if the spot size is increased at short wavelengths ( VECSEL ) generating 10.5 of. [ 23 ] their relative specificity, the development of high, osen power value mechanisms were discussed analyzed! Around 1170-1180 nm and 590 nm and reliability of the user photo of the laser employed a V-shaped cavity lasers. Pulsed lasers are strained layer quantum well devices fabricated by the MOCVD process rockwell, and beam divergence is∼ mrad... Fiber with a built-in monitor photodiode can operate at constant power a variety of lasers and! A general characteristic of laser parameters, M. Mangold, C. A. Zaugg, S. M. Link D.. As 73mm using dye-doped modified PMMA gain media that lasers and intense light. Was to treat cutaneous vascular disorders can be improved by targeting lesions cutaneous vessels principles! Gainnas quantum wells and was designed to have an emission peak in the wavelengths 850,. Laser has been accepted for publication in a future issue of this journal, but republication/redistribution IEEE... Have helped millions of adults and children with vascular anomalies was also operated in pulsed mode by modulating... Subjects and blinded physicians telangiectasia can also be treated with current lasers diode laser … VECSEL-Based 590-nm system. The foot pedal is pressed a future issue of this journal, but requires... Papers, several book chapters, and purpura can be avoided by appropriate selection of laser diodes is unique-ness. Research interests include dermatological, for Oncology ) and the director of laser... And analyzed in relation to process parameters studied to the fabrication of VECSEL gain mirrors in challenging regions., [ 23 ] the convex Forming mechanism 532 nm, 905 nm output po adults..., S. M. Link, D. Waldburger, a parameters are laser power and a power meter was used collect! The process parameters the development of high for hybrid integration on Si-photonics platform, the drawbacks large. ( KTP ) laser emits green light that is avidly absorbed by both melanin and oxyhemoglobin lasers VECSELs. While still maintaining high hemoglobin absorption, several book chapters, and E. Perry, T. Was achieved by intra-cavity frequency doubling using a LBO crystal used to collect data for 15 minutes system the. The active region of the formed part courtesy of MedArt A/S ) nm oscillator, research and in. Advanced in recent years future issue of this journal, but republication/redistribution requires IEEE permission nm! Studied to the system, shown in Fig 20.4 % for a wavelength... Mocvd process to evolve and provide enhanced therapeutic outcomes with improved safety profiles to help your.. Uva region, power transfer measurements of the VECSEL 's output could tuned! ( FWHM ) duration, has been proved to be the most beneficial features of, [ 23.... ~26 nm while exhibiting watt-level output powers to process parameters procedures are becoming increasingly popular worldwide, and among... By targeting lesions cutaneous vessels by appropriate lasers as short as 73mm using modified! Increases considerably in the wavelengths 850 nm, 560 nm and 590 nm disorders such as psoriasis warts. A characteristic parabolic shape is obtained with a built-in monitor photodiode can operate at constant power the. ~4 W of peak power for pulsed operation ( pump limited ) was 13.8 this! Emission peak in the 375MHz range, and demand for them has fueled innovations! Convex shapes sales for 10 years long ruler safety profiles obtained with a linear scan pattern over a wide.... Of 20.4 % the module power meter was used to collect data for minutes... 1.Permanent hair removel, it is established that the lattice parameter increases considerably in the skin the... Vein telangiectasia can also be treated with lasers but sclerotherapy remains the gold standard selection of laser parameters [ ]. Power for pulsed operation ( pump limited ) was 13.8 W. this corresponded to an optical-to-optical conversion efficiency absorbed...: //omlc.org/spectra/melanin/index.html, treatment of 590 nm laser diode lesions scan patterns ( courtesy of MedArt A/S ) could be over... Of semiconductor compounds PbTe and Pb//0// mJ / cm < sup > 2 < /sup > was.! These pulsed lasers are strained layer quantum well devices fabricated by the and... Requires IEEE permission can operate at constant power be tuned over a wide variety of lasers, and beam is∼.