Results 251 to 260 of about 6,091 (303)

Vertical-Cavity Surface-Emitting Laser (VCSEL)

Proceedings of the IEEE, 2013
The vertical-cavity surface-emitting laser (VCSEL) is becoming a key device in high-speed optical local area networks (LANs) and even wide-area networks (WANs). This device is also enabling ultraparallel data transfer in equipment and computer systems, including storage area networks (SANs) and wide optoelectronics fields. In this paper, we will review
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Photopumped infrared vertical-cavity surface-emitting laser

Applied Physics Letters, 1996
The feasibility of a photopumped infrared vertical-cavity surface-emitting laser (VCSEL) based on CdHgTe alloys is demonstrated. The structure of the VCSEL consists of a 16.5-period Cd0.4Hg0.6Te/Cd0.75Hg0.25Te bottom Bragg reflector and a 3λ/4 thick Cd0.75Hg0.25Te cavity, containing a 100-nm-thick well, grown by molecular beam epitaxy.
Hadji, Emmanuel, Bleuse, J., Magnea, N., Pautrat, J.   +3 more
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Reflection noise in vertical cavity surface emitting lasers

51st Annual Device Research Conference, 1993
We describe the effect of back reflections on the relaxation-oscillation peaks of low threshold (<6 mA), high intrinsic bandwidth (31 GHz) vertical cavity surface emitting lasers. With the largest feedback possible with our experimental arrangement, x=−5.8 dB, the relaxation-oscillation peak breaks up into a series of sharp resonances with the ...
J. W. Bae, H. Temkin, S. E. Swirhun, W. E. Quinn, P. Brusenbach, C. Parsons, M. Kim, T. Uchida   +7 more
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Optical Feedback in Vertical-Cavity Surface-Emitting Lasers

IEEE Journal of Selected Topics in Quantum Electronics, 2013
Vertical-cavity surface-emitting lasers (VCSELs) are as sensitive to optical feedback (OF) as edge-emitting lasers as their much higher mirror reflectivity is compensated by the much smaller intracavity round-trip time resulting in a similar OF rate. VCSELs may emit light in multiple transverse modes and may exhibit polarization bistability which adds ...
Panajotov, Krassimir, Sciamanna, Marc, Arteaga, M.A., Thienpont, Hugo   +3 more
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Dynamic Characteristics Of Vertical Cavity Surface Emitting Lasers

LEOS '90. Conference Proceedings IEEE Lasers and Electro-Optics Society 1990 Annual Meeting, 1990
The dynamic behavior of low-threshold vertical-cavity surface-emitting lasers is investigated by using time-resolved spectra for the first time. Significant chirp is observed in the lasing spectrum owing to heating caused by the relatively high operating voltage and resistance.
C. J. Chang-Hasnain, C. E. Zah, G. Hasnain, J. P. Harbison, L. T. Florez, N. G. Stoffel, T. P. Lee   +6 more
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Cavity and Mirror Design for Vertical-Cavity Surface-Emitting Lasers

2003
The principles of vertical-cavity surface-emitting laser (VCSEL) design follow closely those of conventional single-mode edge-emitting laser diodes. They are aimed at a) minimizing the laser threshold current, b) maximizing the wall-plug efficiency, c) maintaining a single-mode operation over a wide range of bias currents, d) minimizing the temperature
Rakic, A., Majewski, M. L.
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The Vertical-Cavity Surface-Emitting Laser as a Sensing Device

Journal of Lightwave Technology, 2018
We show that a change to the quality ( Q ) factor of a laser diode cavity affects the electrical properties of the device. The mechanism is demonstrated experimentally and numerically via a 980-nm InGaAs/GaAs oxide-aperture vertical-cavity surface-emitting laser (VCSEL) wherewith thin, sub-half-lambda-thick Si x N y layers are deposited on top of the
Magdalena Marciniak, Lukasz Piskorski, Marcin Gebski, Maciej Dems, Michal Wasiak, Krassimir Panajotov, James A. Lott, Tomasz Czyszanowski   +7 more
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MEMs-Tunable vertical-cavity surface-emitting lasers

OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001
We present a MEM-VCSEL which can provide over 50 nm of wavelength tuning, up to 8 dBm optical power, and a high side mode suppression. The viability of these devices for telecom applications is directly demonstrated through transmission experiments.
D. Vakhshoori, P.D. Wang, M. Azimi, K.J. Knopp, M. Jiang   +4 more
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Midinfrared vertical-cavity surface-emitting laser

Applied Physics Letters, 1997
We report a type-II antimonide midinfrared vertical-cavity surface-emitting laser. The emission wavelength of 2.9 μm is nearly independent of temperature (dλ/dT≈0.07 nm/K) and the multimode linewidth is quite narrow (3.5 nm). The pulsed threshold power at 86 K is as low as 22 mW for a 30 μm spot.
C. L. Felix, W. W. Bewley, I. Vurgaftman, J. R. Meyer, L. Goldberg, D. H. Chow, E. Selvig   +6 more
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Holographic vertical-cavity surface-emitting laser

Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO '99. Conference on Lasers and Electro-Optics (IEEE Cat. No.99CH37013), 2003
Summary form only given. We present holographic diffraction from a broad-area thin-film holographic laser. The holographic laser is similar to a vertical-cavity surface-emitting laser (VCSEL) and consists of a 1 /spl mu/m thick GaAs active layer sandwiched between two 61.6 nm Al/sub 0.1/Ga/sub 0.9/As-AlAs 72.8 nm Bragg stacks, centered at 870 nm, with ...
K.M. Kwolek, D.D. Nolte, C. Lenox, B. Streetman   +3 more
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