Results 31 to 40 of about 319,656 (388)

Monolithic optoelectronic integration of a GaAlAs laser, a field-effect transistor, and a photodiode [PDF]

open access: yes, 1984
A low threshold buried heterostructure laser, a metal-semiconductor field-effect transistor, and a p-i-n photodiode have been integrated on a semi-insulating GaAs substrate. The circuit was operated as a rudimentary optical repeater.
Bar-Chaim, N.   +3 more
core   +1 more source

Gain recovery in semiconductor optical amplifiers

open access: yesOptics Communications, 2008
Pump–probe measurements are presented of gain compression and recovery in a series of four semiconductor optical amplifiers of different lengths but otherwise identical structures. A continuous wave probe beam from a tunable laser is used to measure the wavelength dependence of gain compression and recovery times.
Li, X   +3 more
openaire   +3 more sources

Highly Efficient Inverse Design of Semiconductor Optical Amplifiers Based on Neural Network Improved Particle Swarm Optimization Algorithm

open access: yesIEEE Photonics Journal, 2023
An artificial intelligent neural network improved particle swarm optimization algorithm is proposed for the inverse design of semiconductor optical amplifier.
Ting Zhao   +6 more
doaj   +1 more source

Realization of a semiconductor-based cavity soliton laser [PDF]

open access: yes, 2007
The realization of a cavity soliton laser using a vertical-cavity surface-emitting semiconductor gain structure coupled to an external cavity with a frequency-selective element is reported.
F. W. Wise   +8 more
core   +2 more sources

Loop Mirror Multi-wavelength Brillouin Fiber Laser Utilizing Semiconductor Optical Amplifier and Fiber Bragg Grating

open access: yesMATEC Web of Conferences, 2017
In this paper, the development of loop mirror multi-wavelength Brillouin fiber laser utilizing semiconductor optical amplifier and fiber Bragg grating is successfully demonstrated. A multi-wavelength BFL structure employs a single mode fiber that acts as
Idris N. A.   +5 more
doaj   +1 more source

Inducing tunable single-mode operation of Fabry-Perot semiconductor laser coupled with very-short cavity with selective optical feedback

open access: yesJournal of the European Optical Society-Rapid Publications, 2019
We report on achieving tuned single mode operation of a multimode semiconductor laser by coupling it to a very-short external cavity with selective feedback.
Mohammed S. Al-Ghamdi   +2 more
doaj   +1 more source

Practical method for modelling the nonlinear behaviour of a travelling wave semiconductor optical amplifier [PDF]

open access: yes, 1993
The authors present a simple model of a travelling wave semiconductor optical amplifier with an appreciable degree of saturation. The model uses a particular way of linearising the total carrier recombination R(N) to find useful expressions for the ...
Guitart Felip, Jorge   +1 more
core   +2 more sources

Gallium Aluminum Arsenide/Gallium Arsenide Integrated Optical Repeater [PDF]

open access: yes, 1984
A low threshold buried heterostructure laser, a metal-semiconductor field effect transistor (MESFET), and a photodiode, have for the first time, been monolithically integrated on a semi-insulating GaAs substrate.
Bar-Chaim, N.   +3 more
core   +1 more source

Controlled fundamental supermode operation of phase-locked arrays of gain-guided diode lasers [PDF]

open access: yes, 1984
Uniform semiconductor laser arrays tend to oscillate in a superposition of their supermodes, thus leading to large beam divergence and spectral spread. Discrimination among the supermodes in phase-locked arrays is discussed theoretically.
Kapon, E.   +3 more
core   +1 more source

Efficient Optically-Pumped Semiconductor Optical Amplifier in a Coupled-Waveguide Configuration: A Novel Proposal

open access: yesIEEE Photonics Journal, 2021
We propose an efficient scheme of optical pumping and a compact design of an optically-pumped semiconductor optical amplifier (OP-SOA), with gain characteristics which are qualitatively similar to that of conventional (electrically-pumped) SOA.
Nithin Vogirala, M. Shenoy, Yogesh Kumar
doaj   +1 more source

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