scholarly journals A Widely Tunable Three-Section DBR Lasers for Multi-Species Gas Detection

2021 ◽  
Vol 11 (6) ◽  
pp. 2618
Author(s):  
Hongyan Yu ◽  
Jiaoqing Pan ◽  
Xuliang Zhou ◽  
Hui Wang ◽  
Liang Xie ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Gas Sensing ◽  
Butt Joint ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Mode Suppression ◽  
Potential Capacity ◽  
Temperature Tuning ◽  
Side Mode ◽  
Methane Detection

We demonstrate a widely tunable distributed Bragg reflector (DBR) laser operating at 1.8-µm, in which the DBR section was butt-jointed InGaAsP (λ = 1.45 μm) material. Through current and temperature tuning, a widely tuning range of over 11 nm with a side mode suppression ratio (SMSR) higher than 30 dB is obtained. Utilizing this DBR laser, the water and methane detection experiment has been successfully implemented, which illustrates the potential capacity of such DBR laser as the light source used for multispecies gas sensing. The work also illustrates that the butt-joint active-passive integration technology developed for the InGaAsP quantum-wells (QWs) can be successfully applied in the InGaAs QWs.

Low-voltage-tunable distributed Bragg reflector using InGaAs/GaAs quantum wells

1993 ◽  
Vol 5 (6) ◽  
pp. 695-697 ◽  
Author(s):  
O. Blum ◽  
J.E. Zucker ◽  
X. Wu ◽  
K.H. Gulden ◽  
H. Sohn ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Low Voltage ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector

scholarly journals Вертикально-излучающие лазеры спектрального диапазона 1.55 mum, сформированные методом спекания

2018 ◽  
Vol 44 (1) ◽  
pp. 59
Author(s):  
А.В. Бабичев ◽  
Л.Я. Карачинский ◽  
И.И. Новиков ◽  
А.Г. Гладышев ◽  
С.А. Блохин ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Modulation Frequency ◽  
Cutoff Frequency ◽  
Optical Power ◽  
Single Mode ◽  
Threshold Current ◽  
Bragg Reflector ◽  
Cavity Surface ◽  
Distributed Bragg Reflector ◽  
Aperture Diameter

AbstractThe results of studies on fabrication of vertical-cavity surface-emitting 1.55-μm lasers by fusing AlGaAs/GaAs distributed-Bragg-reflector wafers and an active region based on thin In_0.74Ga_0.26 As quantum wells grown by molecular-beam epitaxy are presented. Lasers with a current aperture diameter of 8 μm exhibit continuous lasing with a threshold current below 1.5 mA, an output optical power of 6 mW, and an efficiency of approximately 22%. Single-mode lasing with a side-mode suppression ratio of 40–45 dB is observed in the entire operating current range. The effective modulation frequency of these lasers is as high as 9 GHz and is limited by the low parasitic cutoff frequency and self-heating.

Mode-hop free operation throughout lifetime confirmed in a 2um distributed Bragg reflector laser for gas sensing

2019 ◽  
Author(s):  
Makoto Shimokozono ◽  
Takuya Kanai ◽  
Naoki Fujiwara ◽  
Hiroyuki Ishii ◽  
Yoshitaka Ohiso ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector

Electrically tunable group delays using quantum wells in a distributed Bragg reflector

1999 ◽  
Author(s):  
Thomas R. Nelson, Jr. ◽  
John P. Loehr ◽  
Qianghua Xie ◽  
James E. Ehret ◽  
Joseph E. Van Nostrand ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Group Delays

A 1.6-μm widely tunable distributed Bragg reflector laser diode based on InGaAs/InGaAsP quantum-wells material

2021 ◽  
pp. 127201
Author(s):  
Hongyan Yu ◽  
Mengqi Wang ◽  
Daibing Zhou ◽  
Xuliang Zhou ◽  
Pengfei Wang ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Laser Diode ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector

Simultaneous multispecies gas sensing by use of a sampled grating distributed Bragg reflector and modulated grating Y laser diode

2005 ◽  
Vol 44 (27) ◽  
pp. 5824 ◽  
Author(s):  
Richard Phelan ◽  
Michael Lynch ◽  
John F. Donegan ◽  
Vincent Weldon
Keyword(s):  
Laser Diode ◽  
Gas Sensing ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Sampled Grating

2-μm band active distributed Bragg reflector laser for CO2 gas sensing

2019 ◽  
Vol 12 (9) ◽  
pp. 092011 ◽  
Author(s):  
Yuta Ueda ◽  
Takahiko Shindo ◽  
Takuya Kanai ◽  
Makoto Shimokozono ◽  
Naoki Fujiwara ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Co2 Gas

Nonlinear Optical Response in Coupled Quantum Wells Optomechanical microcavity

2021 ◽  
Author(s):  
Surabhi Yadav ◽  
Aranya Bhuti Bhattacherjee
Keyword(s):  
Quantum Wells ◽  
Cavity Mode ◽  
Optical Switch ◽  
Mean Field ◽  
Kerr Nonlinearity ◽  
Bragg Reflector ◽  
Field Analysis ◽  
Distributed Bragg Reflector ◽  
Coupled Quantum Wells ◽  
Induced Transparency

Abstract We investigate the optical properties of a hybrid solid-state optomechanical microcavity containing two coupled quantum wells interacting with the cavity mode in the presence of a third-order nonlinear medium and a mechanically compliant distributed Bragg reflector (MC-DBR). The MC-DBR interacts with the cavity mode via the nonlinear radiation pressure effect. The steady-state mean-field analysis shows the existence of optical bistability, which can be utilized to design all-optical tunable switches. The coupling between the two quantum wells, the interaction between the excitons and the optical mode, the Kerr nonlinearity, and the optomechanical interaction can be tuned to operate the optical switch at lower input laser power. The fluctuation dynamics demonstrate the presence of optomechanically induced transparency (OMIT) and optomechanically induced absorption (OMIA). We find that both OMIT and OMIA can be manipulated efficiently by optomechanical coupling strength and the quantum well tunneling rate.

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