Results 71 to 80 of about 6,603,930 (212)

Intra-cavity frequency doubling of an electrically pumped edge-emitting 980 nm laser diode with PPLN [PDF]

, 2009
The growing trend for laser-based projection displays makes intra-cavity frequency doubling (ICFD) of electrically and optically surface emitting diode lasers in the near IR region become more interesting [1-3].
Gawith, C.B.E., Li, Kang, Yao, Aiyun, Knight, Ian G., Copner, N.J.   +4 more
core   +2 more sources

Quantum-Well-Embedded InGaN Quantum Dot Vertical-Cavity Surface-Emitting Laser and Its Photoelectric Performance

Photonics
An electrically injected vertical-cavity surface-emitting laser (VCSEL) with quantum-well-embedded InGaN quantum dots (QDs) as the active region was designed.
Zinan Hua, Hailiang Dong, Zhigang Jia, Wei Jia, Lin Shang, Bingshe Xu   +5 more
doaj   +1 more source

Optical Coherence Tomography for High‐Precision Industrial Inspection in Industry 4.0: Advances, Challenges, and Future Trends

Laser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
This review examines how optical coherence tomography transforms industrial inspection by delivering real‐time, micrometer‐resolution, depth‐resolved imaging. It surveys applications across display manufacturing, thin films, microelectronics, laser processing, and coatings, evaluates performance against conventional techniques, and highlights emerging ...
Nipun Shantha Kahatapitiya, Sm Abu Saleah, Daewoon Seong, Naresh Kumar Ravichandran, Sangyeob Han, Ruchire Eranga Wijesinghe, Mansik Jeon, Jeehyun Kim   +7 more
wiley   +1 more source

Next‐Generation Wearable Optical Sensors for Personalized Health and Point‐of‐Care Diagnostics—A Systematic Review

Advanced Healthcare Materials, Volume 15, Issue 10, 13 March 2026.
This review article presents a comprehensive and integrated overview of wearable optical sensors, systematically bridging advanced functional materials with fundamental optical sensing mechanisms. It further highlights their diverse applications across healthcare, fitness monitoring, environmental surveillance, and food safety.
Rituparna Duarah, Helena Torné‐Morató, Guolong Zhang, Youssef Amin, Mahdieh Pabast, Nidhi Sharma, Sailing He, Manash R. Das, Pier Paolo Pompa   +8 more
wiley   +1 more source

VCSEL intrinsic response extraction using T-Matrix formalism [PDF]

, 2009
We present a new method to remove the parasitics contribution to the VCSEL chip response, in order to obtain the intrinsic S21 behavior. The on-chip VCSEL is defined as two cascaded two-port subsystems representing the electrical access and the VCSEL ...
Sirbu, A., Iakovlev, Vladimir, Bacou, A., Rissons, A., Iakovlev, V., Bacou, Alexandre, Mollier, Jean-Claude, Kapon, Eli, Kapon, E., Hayat, A., Mollier, J.C., Rissons, Angélique, Sirbu, Alexei, Hayat, Ahmad   +13 more
core   +1 more source

Performance improvement of GaN-based vertical cavity surface emitting laser by employing a hole storage layer and enhancing the carrier transport behavior

Results in Physics
In this paper, the transport behavior of carriers between multiple quantum wells (vertical) and inside a single quantum well (radial) in a GaN-based Vertical Cavity Surface Emitting Laser (VCSEL) is investigated, and a new device structure with a hole ...
Yachen Wang, Feng Liang, Jing Yang, Ping Chen, Zongshun Liu, Changsheng Xia, Degang Zhao   +6 more
doaj   +1 more source

A 5 m/25 Gbps Underwater Wireless Optical Communication System

IEEE Photonics Journal, 2018
A 25-Gbps underwater wireless optical communication (UWOC) system with a two-stage injection-locked 680-nm red-light vertical-cavity surface-emitting laser (VCSEL) transmitter to enhance the frequency response and a laser beam expander to expand the ...
Chung-Yi Li, Hai-Han Lu, Wen-Shing Tsai, Zhen-Han Wang, Chung-Wei Hung, Chung-Wei Su, Yi-Feng Lu   +6 more
doaj   +1 more source

High-speed modulation, wavelength, and mode control in vertical-cavity surface-emitting lasers

, 2022
Paper 93810F, 10 S.We address demands and challenges for GaAs-based Vertical-Cavity Surface-Emitting Lasers (VCSEL) in data communication. High speed modulation (similar to 50Gb/s) at a high reliability can be realized with a proper VCSEL design ...
Schmidt, F., Caspar, C., Wu, B., Ma, Y.N., Turkiewicz, J.P., Freund, R., Ledentsov, N.L.N., Feng, Z.Y., Kropp, J.-R., Qiu, S.F., Choquette, K.D., Burger, S., Steinle, G., Shchukin, V.A., Ledentsov, N.N.   +14 more
core   +1 more source

A 50-m/40 Gb/s 680-nm VCSEL-Based FSO Communication

IEEE Photonics Journal, 2016
A 50-m/40-Gb/s 680-nm vertical-cavity surface-emitting laser (VCSEL)-based free-space optical (FSO) communication employing three-stage injection-locked technique and the afocal scheme is proposed and experimentally demonstrated.
Wen-Shing Tsai, Hai-Han Lu, Chung-Yi Li, Ting-Chieh Lu, Chen-Hong Liao, Chien-An Chu, Peng-Chun Peng   +6 more
doaj   +1 more source

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