Results 71 to 80 of about 219,128 (154)

Self-sustained picosecond pulse generation in a GaAlAs laser at an electrically tunable repetition rate by optoelectronic feedback [PDF]

open access: yes, 1984
We demonstrate that applying optoelectronic feedback to a high-speed, self-pulsing semiconductor laser is an effective and practical means of generating picosecond optical pulses (~10–20 ps) at a very high repetition rate, between 1 to 5 GHz, which can ...
Lau, K. Y., Yariv, A.
core   +1 more source

Intelligent Modeling for Transfer Function Control of DBR Semiconductor Laser at Near-Working Point

open access: yesIEEE Access, 2020
In this paper, a novel intelligent modeling method for transfer function control of DBR semiconductor lasers at near-working point is proposed, which is based on the quantum particle swarm optimization (QPSO) algorithm.
Xiufei Li   +5 more
doaj   +1 more source

Generation of tuneable 589nm radiation as a Na guide star source using an optical parametric amplifier [PDF]

open access: yes, 2015
We describe a 5.5W 589nm source based on a passively modelocked Nd:YVO4 laser and a multi-stage Lithium Triborate optical parametric amplifier seeded by a tuneable semiconductor laser.
Duering, M   +2 more
core   +1 more source

Numerical Investigation on Ultra-Broadband Tunable Microwave Frequency Comb Generation Using a Semiconductor Laser Under Regular Pulse Injection

open access: yesIEEE Access, 2018
A system scheme for generating ultra-broadband microwave frequency comb (MFC) based on a semiconductor laser under optical injection of regular pulse from a current-modulated laser is proposed, and the performances of the generated MFC are numerically ...
Xiao-Qin Xu   +3 more
doaj   +1 more source

A Solution of Nonlinear Rate Equations of Directly Modulated Semiconductor Laser to Chose Optimum Frequency Modulation

open access: yesJournal of Engineering and Sustainable Development, 2009
The purpose of this paper is to solve the nonlinear rate equations of directly modulated semiconductor laser by direct simulation (numerical solution) where the rate equations are described the dynamic behavior of semiconductor laser because of optical ...
Razi Jabur Al-Azawi
doaj  

Laser sources on a heterogeneous III-V/silicon platform [PDF]

open access: yes, 2011
The heterogeneous integration of III-V semiconductor lasers on a silicon waveguide platform using DVS-BCB adhesive bonding is reviewed.
Baets, Roel   +13 more
core  

Design of coupling system in fiber optic sensing measurement

open access: yesJournal of Measurement Science and Instrumentation, 2019
According to the principle of choosing the light source in the fiber optic sensing measurement, semiconductor laser is used as the light source of fiber optic sensor and single-mode fiber is used as the tail fiber of light source. Based on optical design
YANG Rui-feng   +4 more
doaj  

Effect of Step Response for Semiconductor Laser

open access: yesJournal of Engineering and Sustainable Development, 2010
The behavior of the dynamics of semiconductor laser is investigated by simulation and solving numerically the laser rate equations for photon and carrier densities.
Ayad Zwayen Mohammed   +2 more
doaj  

The Effect of Lens Focal Length on the Output Characteristics of 1.55 μm Tunable External-Cavity Semiconductor Lasers

open access: yesPhotonics
The 1.55 μm TECSL has excellent characteristics such as wide tuning, narrow linewidth, high SMSR, and high output power and has a wide range of applications in optical communications, spectral sensing, gas detection, atomic physics, and biomedicine.
Xuan Li   +11 more
doaj   +1 more source

Parameter Mismatches and Perfect Anticipating Synchronization in bi-directionally coupled external cavity laser diodes

open access: yes, 2002
We study perfect chaos synchronization between two bi-directionally coupled external cavity semiconductor lasers and demonstrate for the first time that mismatches in laser photon decay rates can explain the experimentally observed anticipating time in ...
C. Masoller   +16 more
core   +2 more sources

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