Results 81 to 90 of about 527,604 (294)

Control of slow axis mode behavior with waveguide phase structures in semiconductor broad-area lasers

, 2022
Paper 72301LAn increase in the output power of semiconductor waveguide lasers is commonly achieved through broadening the stripe width of the active waveguide region.
Schmid, W., Eckstein, H.-C., Zeitner, U.D., Strauss, U.   +3 more
core   +1 more source

Self‐Powered, Ultra‐Sensitive InGaAs/ITO Nanowire Radial Junction Infrared Photodiode for Low Flux Imaging at Room Temperature

Advanced Functional Materials, EarlyView.
This study reports a self‐powered InGaAs nanowire photodetector achieving single‐photon‐level sensitivity in the shortwave infrared at non‐cryogenic temperatures. The device demonstrates high‐speed imaging capabilities even under extremely low‐flux conditions.
Kosala Dhanawansha, Chaohao Chen, Zhe Li, Tuomas Haggren, Dawei Liu, Yang Yu, Baolei Liu, Sanjay Krishna, Hark H. Tan, Chennupati Jagadish, Lan Fu   +10 more
wiley   +1 more source

Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction

Advanced Functional Materials, EarlyView.
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee, Junho Min, Yonas Tsegaye Megra, Min‐Hye Jeong, Hwi Je Woo, Jaewon Han, Junheon Ha, Gyunghyun Jang, Young Jae Song, Hyun‐Soo Ra, Hoon Hahn Yoon, Jong‐Soo Lee   +11 more
wiley   +1 more source

Photonics Breakthroughs 2024: Narrow-Linewidth Lasers in the Visible and Near-Infrared

IEEE Photonics Journal
Narrow-linewidth lasers enable a variety of high-precision applications, such as sensing, optical clocks, and microwave frequency generation. Advances in photonic integration in the last decade led to the development of ultra-low-noise integrated ...
Artem Prokoshin, Michael Gehl, Scott Madaras, Weng W. Chow, Yating Wan   +4 more
doaj   +1 more source

Single Transverse Whispering-Gallery Mode AlGaInAs/InP Hexagonal Resonator Microlasers

IEEE Photonics Journal, 2011
AlGaInAs/InP hexagonal resonator microlasers with an output waveguide connected to one vertex of the hexagon are fabricated using standard photolithography and inductively coupled plasma (ICP) etching process.
J. D. Lin, Y. Z. Huang, Y. D. Yang, Q. F. Yao, X. M. Lv, J. L. Xiao, Y. Du   +6 more
doaj   +1 more source

GeS as an Emerging OTS Material: Atomic Structure and Modeling of ON/OFF Switching

Advanced Functional Materials, EarlyView.
The structural puzzle of glassy GeS, an advanced memory‐selector material, has finally been disentangled, revealing a patchwork of mixed tetrahedral and trigonal species. Under a high electric field, over‐ and under‐coordinated Ge and S defects, together with three‐membered rings, form an interconnected network associated with localized and extended ...
Andrey Tverjanovich, Jörg C. Neuefeind, Chris J. Benmore, Daniele Fontanari, Anton Sokolov, Maxim Khomenko, Shinji Kohara, Aleksei Bytchkov, Takeshi Usuki, Maria Bokova, Mohammad Kassem, Pascal Masselin, Mariana Milochova, Eugene Bychkov   +13 more
wiley   +1 more source

Interband Mid-IR Semiconductor Lasers

IEEE Photonics Journal, 2010
Significant advances in the room-temperature (RT) continuous-wave (CW) output power of both type-I quantum-well (QW) active-layer lasers and interband cascade lasers have been reported within the 3–4- $\mu\hbox{m}$ wavelength region in 2009 ...
L. J. Mawst
doaj   +1 more source

Ultra-low Noise Semiconductor Lasers

, 2022
This invited paper reviews work towards creating ultra-low noise semiconductor laser sources with performance exceeding solid-state and fiber lasers, together with progress in the development of CMOS foundry Silicon Photonics versions of these devices ...
Morton, Paul A., Bowers, John E., Xiang, Chao, Khurgin, Jacob B.   +3 more
core  

Discrete mode lasers for applications in access networks [PDF]

, 2007
Fast development of the modern telecommunication networks such as fiber-to-the-home or radio-over-fiber systems require an inexpensive yet reliable optical transmitter for electro-optic conversion.
Kelly, Brian, Anandarajah, Prince M., J. O'Gorman, A. Kaszubowska-Anandarajah, O'Gorman, J., P. Anandarajah, Barry, Liam P., Guignard, Celine, O\u27Gorman, J., C. Guignard, Kaszubowska-Anandarajah, Aleksandra, B. Kelly, O'Gorman, James, L. Barry   +13 more
core   +2 more sources

Mode-locked semiconductor lasers and their applications for optical signal processing

, 2022
S.348-349Summary form only given. Mode-locked semiconductor lasers may be used for numerous applications in optical signal processing. We provide an overview on various realizations of mode-locked semiconductor lasers for optical time division ...
Schmidt, C., Kuller, L., Feiste, U., Dietrich, E., Ludwig, R., Ehrke, H.J., Weber, H.G., Diez, S.   +7 more
core   +1 more source