Results 81 to 90 of about 1,856 (216)

S-band SLM distributed Bragg reflector fiber laser

, 2014
Generation of single longitudinal mode operation based on distributed Bragg reflector (DBR) cavity configuration, using a depressed-cladding erbium-doped fiber as the gain medium collectively with fiber Bragg grating (FBG) and Faraday rotator mirror (FRM)
Ahmad, Harith, Harun, Sulaiman Wadi, Azhari, N. S., Azhari, N.S., Muhammad, Farah Diana, Muhammad, F.D., Zulkifli, M.Z., Ahmad, H., Zulkifli, Mohd Zamani   +8 more
core   +1 more source

Offset quantum-well method for tunable distributed Bragg reflector lasers and electro-absorption modulated distributed feedback lasers

, 2005
A two-section offset quantum-well structure tunable laser with a tuning range of 7 nm was fabricated using offset quantum-well inethod. The distributed Bragg reflector （DBR） was realized just by selectively wet etching the multiquantum-well （MQW） layer ...
Zhu Hongliang, Zhao Lingjuan, Kan Qiang, Wang Yu, Zhou Fan, Wang Lufeng, Ding Ying, Wang Baojun   +7 more
core  

High-Quality Monolithic Distributed Bragg Reflector Cavities and Lasers in Alumina Channel Waveguides [PDF]

, 2011
The design, fabrication, and characterization of surface relief Bragg gratings integrated with aluminum oxide ridge waveguides are reported. The grating lengths varied between 1.25 mm and 4.75 mm and were used to create various distributed Bragg ...
Bernhardi, Edward, Pollnau, Markus, de Ridder, R.M., van Wolferen, Hendricus A.G.M., Worhoff, Kerstin   +4 more
core  

SG-DBR激光器波长自动测试控制系统

Guangtongxin yanjiu, 2007
基于LabVIEW虚拟仪器平台,研制了一套可调谐取样光栅分布布拉格反射式（Sampled Grating Distributed Bragg Reflector,SG-DBR）激光器的波长自动测试控制系统。该系统能对四段式SG-DBR激光器进行电流扫描,采集、分析其输出光谱,生成SG-DBR激光器的“波长-电流”数据查询表;并且通过调用数据查询表,实现对SG-DBR激光器输出波长的控制。
陈磊, 张靖, 张瑞康, 江山, 毛谦   +4 more
doaj  

1380 nm VCSELs using surface-activated bonding of GaAs-based DBRs on a Ge substrate

Applied Physics Express
A wafer-bonded vertical-cavity surface-emitting laser (VCSEL) was demonstrated by surface-activated bonding (SAB) of a GaAs-based distributed Bragg reflector (DBR) on a Ge substrate.
Tomomasa Watanabe, Mikihiro Yokozeki, Masashi Takanohashi, Michinori Shiomi, Hiroshi Nakajima, Masayuki Tanaka, Daiji Kasahara, Noriko Kobayashi, Noriyuki Futagawa   +8 more
doaj   +1 more source

Wavelength Tuning in Two-Section Distributed Bragg Reflector Laser by Selective Intermixing of InGaAp-InGaAsP Quantum Well Structure

, 2003
The two-section tunable ridge waveguide distributed Bragg reflector (DBR) laser fabricated by the selective intermixing of an InGaAsP-InGaAsP quantum well structure is presented. The threshold current of the laser is 51mA.
Zhu Hongliang, Zhao Lingjuan, Zhang Jingyuan, Lu Yu, Zhang Jing, Zhou Fan, Wang Wei, Wang Baojun   +7 more
core  

Numerical and experimental studies of a distributed Bragg reflector laser [PDF]

, 2018
We report in this paper theoretical and experimental results on the dynamical properties of a distributed Bragg reflector (DBR) semiconductor lasers. Using the traveling wave equation model, we show that a proper choice of coupling coefficient and front ...
REGGENTIN, M., WIEDMANN, J., RADZIUNAS, M., KNIGGE, A., TRONCIU, V. Z., WENZEL, H.   +5 more
core  

A vibration sensor based on a distributed Bragg reflector fibre laser

, 2013
A vibration sensor based on a distributed Bragg reflector (DBR) is proposed. The gratings that form the cavity are written in erbium-doped fibre using the femtosecond laser technique.
José Luís Santos, Marta Sofia Ferreira, Mergo,P, Bartelt,H, Becker,M, Orlando Frazão   +5 more
core   +2 more sources

Efficiency and Droop Improvement in GaN-Based High-Voltage Flip Chip LEDs

International Journal of Photoenergy, 2014
The GaN-based high-voltage flip chip light-emitting diode (HVFC-LED) is designed and developed for the purpose of efficiency enhancement. In our design, the distributed Bragg reflector (DBR) is deposited at the bonded substrate to increase the light ...
Yen-Chih Chiang, Bing-Cheng Lin, Kuo-Ju Chen, Sheng-Huan Chiu, Chien-Chung Lin, Po-Tsung Lee, Min-Hsiung Shih, Hao-Chung Kuo   +7 more
doaj   +1 more source

Enhanced fluorescence emission and collection in luminescent solar concentrators: A theoretical investigation of integrated surface gratings and wavelength-selective reflectors [PDF]

AIP Advances
The Distributed Bragg Reflector (DBR) is a popular one-dimensional photonic crystal having a forbidden effect on photons within certain wavelength bands that can significantly reduce the surface escape loss in Luminescent Solar Concentrators (LSCs ...
Yi Wang, Zhiheng Wan, Zhenhua Cai, Youteng Huan, Chenxi Lu, Lingling Deng   +5 more
doaj   +1 more source