Results 91 to 100 of about 2,658 (232)

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

Development of Infrared Transmitter Using Vertical Cavity Surface Emitting Laser [PDF]

, 2004
Developing good IR transmitter shall consider its complexity and type of emitter. Light emitting diode (LED) which is the most commonly used as an emitter is challenged by emerging technology called vertical cavity surface emitting laser (VCSEL ...
Ayatollahi, Fatima Lina
core  

Polymer-coated vertical-cavity surface-emitting laser diode vapor sensor [PDF]

, 2010
We report a new method for monitoring vapor concentration of volatile organic compounds using a vertical-cavity surface-emitting laser (VCSEL). The VCSEL is coated with a polymer thin film on the top distributed Bragg reflector (DBR).
Anja Boisen, Il-Sug Chung, Nielsen, Claus Højgaard, Dohn, Soren, Thor Ansbæk, Dohn, Søren, Yvind, Kresten, Nielsen, Claus H., Larsen, Niels Bent, Larsen, Niels B., Claus H. Nielsen, Søren Dohn, David Larsson, Ansbæk, Thor, Ansb??k, Thor, Boisen, Anja, Niels B. Larsen, Larsson, David, Chung, Il-Sug, Kresten Yvind   +19 more
core   +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

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

Room-temperature GaN vertical-cavity surface-emitting laser operation in an extended cavity scheme

, 2003
A GaN-based vertical-cavity surface-emitting laser (VCSEL) has been demonstrated in an extended cavity structure. A VCSEL device had a long extended cavity, which consisted of a sapphire substrate as well as a GaN epilayer and had an integrated microlens
Suhee Chae, Jeong, CH, Cho, Yong-Hoon, Jaehoon Kim, Y. Park, Chang-Hyun Jeong, Geun-Young Yeom, Park, SH, Chae, S, Park, Y, Yeom, GY, Lee, SN, Heonsu Jeon, Jeon, H, Tan Sakong, Sakong, T, Sung-Nam Lee, Yong-Hoon Cho, Kim, J, Si-Hyun Park   +19 more
core   +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

Intrinsically Stabilized Plastic Optical Fiber Link Subject to External Optical Feedback

IEEE Photonics Journal, 2019
We develop a graded-index plastic optical fiber (GI POF) that can significantly stabilize a multimode fiber (MMF) link with a vertical-cavity surface-emitting laser (VCSEL) subject to external optical feedback.
Azusa Inoue, Yasuhiro Koike
doaj   +1 more source