Results 61 to 70 of about 977 (184)

Design and optimization of high-contrast gratings for multispectral VCSEL-SOI laser sources

Компьютерная оптика
In the scope of a computational experiment, high-contrast gratings (HCG) formed on a silicon-on-insulator (SOI) platform within vertical-cavity surface-emitting lasers (VCSELs) were studied for multispectral laser sources. A simulation model for spectral
I.S. Shashkin, M.I. Kondratov, A.E. Grishin , K.E. Pevchikh , S.O. Slipchenko, N.A. Pikhtin   +5 more
doaj   +1 more source

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

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

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

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

A High-Speed 130-nm SiGe BiCMOS Integrated Duobinary Driver for Data Rate Capacity Enhancement in VCSEL-Based Optical Links

IEEE Access
Circumventing the data rate bottleneck due to the bandwidth limitation of optical devices is an imperative for today’s fiber-optic communication systems.
Alexandru Giuglea, Guido Belfiore, Florian Protze, Ronny Henker, Frank Ellinger   +4 more
doaj   +1 more source

Vertical Cavity Surface Emitting Laser (VCSEL) Market Analysis.

The VCSEL market, valued at USD $1.18 billion in 2020 and projected to reach USD $4.15 billion by 2030 (11.5% CAGR), is driven by its use in high-speed data communication, 3D sensing in consumer electronics, and LiDAR for autonomous vehicles. VCSELs offer superior beam quality, making them key components in data centers and next-generation automotive ...
openaire   +2 more sources

Link Bandwidth and Transmission Capability of Single-Mode Multi-Aperture Vertical-Cavity Surface-Emitting Lasers at 100 G/Lane and 200 G/Lane over Multimode Fibers

Photonics
Single-mode (SM) vertical-cavity surface-emitting lasers (VCSELs) have often been demonstrated with an unusually long transmission reach at very high data rates while today’s multimode VCSEL transmission has been limited by the fiber modal bandwidth and ...
Xin Chen, Nikolay Ledentsov, Jason E. Hurley, Oleg Yu. Makarov, Ming-Jun Li, Nikolay Ledentsov   +5 more
doaj   +1 more source