Results 41 to 50 of about 12,922 (291)

Electroabsorption modulator-integrated distributed Bragg reflector laser diode for C-band WDM-based networks

open access: yesETRI Journal, 2023
We report an electroabsorption modulator (EAM)-integrated distributed Bragg reflector laser diode (DBR-LD) capable of supporting a high data rate and a wide wavelength tuning.
Oh-Kee Kwon, Chul-Wook Lee, Ki-Soo Kim
doaj   +1 more source

Characterization of frequency drift of sampled-grating DBR laser module under direct modulation [PDF]

open access: yes, 2008
The authors demonstrate the drift in frequency of a static sampled-grating distributed Bragg reflector (SG DBR) laser module when it is subjected to direct modulation.
Anandarajah, Prince M.   +6 more
core   +1 more source

Quantum-Dot Photonic-Crystal Surface-Emitting Lasers with Bottom Distributed Bragg Reflector

open access: yesPhotonics, 2018
Quantum-dot (QD) photonic-crystal (PC) surface-emitting laser (SEL) devices with bottom distributed Bragg reflector (DBR) were fabricated based on vertical-cavity SEL structure with top DBR completely removed.
Ming-Yang Hsu, Gray Lin
doaj   +1 more source

A Fully Optoelectronic Continuous-Wave 2-Port Vector Network Analyzer Operating From 0.1 THz to 1 THz

open access: yesIEEE Journal of Microwaves, 2021
We present a 2-port terahertz vector network analyzer (VNA) based on four continuous-wave (CW) photomixers and a pair of telecom-wavelength CW lasers. The presented optoelectronic VNA is free-space coupled and can operate continuously from 0.1 THz to 1 ...
Anuar D. J. Fernandez Olvera   +2 more
doaj   +1 more source

Dynamic modal analysis of monolithic mode-locked semiconductor lasers [PDF]

open access: yes, 2003
We analyze the advantages and applicability limits of the mode-coupling approach to active, passive, hybrid, and harmonic mode-locking in diode lasers. A simple, computationally efficient numerical model is proposed and applied to several traditional and
Arnold, J.M.   +2 more
core   +1 more source

Optical Analysis of 1300 nm GaInNAsSb/GaAs Vertical Cavity Semiconductor Optical Amplifier

open access: yesZanco Journal of Pure and Applied Sciences, 2020
Vertical cavity semiconductor optical amplifiers (VCSOAs) based on GaInNAsSb active region is designed to operate in reflection mode at wavelength of 1300 nm.
Faten Adel Ismael Chaqmaqchee   +2 more
doaj   +3 more sources

Photonic band structure in a one-dimensional distributed Bragg reflector pillar

open access: yesMaterials Research Express, 2020
This paper aims to calculate the photonic band structure in a distributed Bragg reflector pillar. The one-dimensional periodic photonic pillar consists of alternating layers of GaAs and air.
Francis Segovia-Chaves   +2 more
doaj   +1 more source

High Reflectivity YDH/SiO2 Distributed Bragg Reflector for UV-C Wavelength Regime

open access: yesIEEE Photonics Journal, 2018
A distributed Bragg reflector (DBR) composed of Y2O3-doped HfO2 (YDH)/SiO2 layers with high reflectivity spectrum centered at a wavelength of ∼240 nm is fabricated using radio-frequency magnetron sputtering.
Mohd Sharizal Alias   +10 more
doaj   +1 more source

Fast-Response Liquid Crystals for 6G Optical Communications

open access: yesCrystals, 2021
We report two high birefringence and low viscosity nematic mixtures for phase-only liquid-crystal-on-silicon spatial light modulators. The measured response time (on + off) of a test cell with 2π phase change at 1550 nm, 5 V operation voltage, and 40 °C ...
Junyu Zou   +3 more
doaj   +1 more source

Anisotropic properties of pipe-GaN distributed Bragg reflectors

open access: yesNanoscale Advances, 2020
Polarization-dependent reflectance spectra of the pipe-GaN reflector show that it can be used as a polarized light source.
Chia-Jung Wu   +9 more
openaire   +3 more sources

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