Results 81 to 90 of about 6,603,930 (212)

A buried tunnel junction 940 nm VCSEL for achieving thermal diffusion characteristics

AIP Advances
To investigate the performance degradation of a vertical-cavity surface-emitting laser (VCSEL) caused by self-heating effects, a 940 nm VCSEL with a buried tunnel junction (BTJ) and an aperture size of 10 μm was designed. The BTJ-type VCSEL achieves a 39.
Linjin Song, Zhigang Jia, Wei Jia, Shufang Ma, Lin Shang, Hailiang Dong   +5 more
doaj   +1 more source

Lasing from active optomechanical resonators [PDF]

, 2014
This study was funded by the Deutsche Forschungsgemeinschaft (project BA 1549/14-1), the State of Bavaria and the Ukrainian State Fund for Fundamental Researches (programme SFFR-DFG). A.V.A.
Akimov, A.V., Yakovlev, D. R., Akimov, A. V., C. Brüggemann, M. Bayer, H�fling, S., Glavin, B. A., Schneider, C., Glavin, B.A., S. Höfling, Höfling, S., A. V. Akimov, D. R. Yakovlev, J. Tepper, Tepper, J., Czerniuk, T., T. Czerniuk, Bayer, M., C. Schneider, Brüggemann, C., S. Brodbeck, B. A. Glavin, Brodbeck, S., Kamp, M., Yakovlev, D.R., M. Kamp, Br�ggemann, C.   +26 more
core   +1 more source

Bidirectional Visible Light Communication System Using a Single VCSEL With Predistortion to Enhance the Upstream Remodulation

IEEE Photonics Journal, 2018
The demand of higher data rates has made it attractive to consider a low-cost laser diode (LD), such as vertical-cavity-surface-emitting laser (VCSEL) for use in visible light communication (VLC) transmitters (Tx) due to their higher electrical-to ...
Liang-Yu Wei, Chi-Wai Chow, Chin-Wei Hsu, Chien-Hung Yeh   +3 more
doaj   +1 more source

Comparaison de la diaphonie présentée par deux technologies d'intégration de barrettes de VCSEL [PDF]

, 2006
Nous présentons les résultats de simulations et caractérisations de diodes lasers VCSEL (Vertical Cavity Surface Emitting Laser) montées en barrettes selon 2 technologies distinctes: l'une de type microruban développée par Avalon Photonics, et l'autre de
Rissons, Angélique, Mollier, Jean-Claude   +1 more
core  

Free space optical interconnects for speckled computing [PDF]

, 2009
The aim of this project was to produce an integrate-able free space optical transceiver for Specks. Specks are tiny computing units that together can form a powerful network called a SpeckNet.
Reardon, Christopher P.
core   +2 more sources

AlGaAs VSCELs grown on thin 150 mm germanium substrates

JPhys Photonics
To reduce material usage and minimise device cost the use of reduced substrate thickness is considered in high volume vertical-cavity surface-emitting laser (VCSEL) manufacturing.
S J Gillgrass, J Baker, C P Allford, J I Davies, S Shutts, P M Smowton   +5 more
doaj   +1 more source

Polarization and Time-Resolved Dynamics of a 1550-nm VCSEL Subject to Orthogonally Polarized Optical Injection

IEEE Photonics Journal, 2011
We report a first experimental study of the simultaneous temporal and polarization-resolved dynamics of a 1550-nm vertical-cavity surface-emitting laser (VCSEL) subject to orthogonally polarized optical injection.
Kevin Schires, Antonio Hurtado, Ian D. Henning, Michael J. Adams   +3 more
doaj   +1 more source

Mode structure of a vertical-cavity surface-emitting laser subject to optical feedback [PDF]

, 2006
We present an analysis of the external cavity mode (ECM) structure of a vertical-cavity surface-emitting laser subject to optical feedback. We consider a model in which two transverse optical modes are excited.
Green, K, Lenstra, D., Green, K., Lenstra, D, Krauskopf, B   +4 more
core  

Experimental Study of PWM-Controlled Emission From a Large-Aperture VCSEL

IEEE Photonics Journal
This study demonstrates the use of pulse-width modulation (PWM) for mode selection in a large-aperture vertical-cavity surface-emitting laser (VCSEL). Experimental results reveal that driving the device with 1 kHz PWM pulses maintains a stable far-field ...
Miroslav Slouka, Dalibor Javurek, Erik Hendrych, Marcel Stofik, Martin Kutac, Jan Latal   +5 more
doaj   +1 more source

Multi-Channel Physical Random Bits Generation Using a Vertical-Cavity Surface-Emitting Laser Under Chaotic Optical Injection

IEEE Access, 2018
We experimentally demonstrate multi-channel physical random bits (PRBs) generation by utilizing chaotic outputs from two linear polarization modes in a vertical-cavity surface-emitting laser (VCSEL) under a chaotic optical injection.
Xi Tang, Guang-Qiong Xia, Elumalai Jayaprasath, Tao Deng, Xiao-Dong Lin, Li Fan, Zi-Ye Gao, Zheng-Mao Wu   +7 more
doaj   +1 more source