Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)最新文献_第6页

Advances in solid state lasers with nonlinear phase conjugate mirrors 非线性相位共轭镜固体激光器的研究进展

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910191

J. Huignard, A. Brignon

引用次数: 0

Aecurate modeling of the cross-talk effects in integrated acousto-optic tunable filters 集成声光可调滤波器串扰效应的精确建模

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909913

N. Bellu, G. Perrone, I. Montrosset

引用次数: 0

Optical and material studies of indium compositional fluctuations in InGaN/GaN quantum well structures InGaN/GaN量子阱结构中铟成分波动的光学和材料研究

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909675

S. Feng, Yen-Sheng Lin, C. Liao, K. Ma, C.C. Yanel, Chang-Cheng Chou, Chia-Ming Lee, J. Chyi

{"title":"Optical and material studies of indium compositional fluctuations in InGaN/GaN quantum well structures","authors":"S. Feng, Yen-Sheng Lin, C. Liao, K. Ma, C.C. Yanel, Chang-Cheng Chou, Chia-Ming Lee, J. Chyi","doi":"10.1109/CLEOE.2000.909675","DOIUrl":"https://doi.org/10.1109/CLEOE.2000.909675","url":null,"abstract":"Summary form only given. Indium compositional fluctuations in InGaN are crucially important for efficient light emission in such compounds. It was claimed that the quantum-dot-like InGaN aggregations trapped carriers for radiative recombination before they were trapped by defects for nonradiative recombination. This argument explained the efficient light emission in a compound of high defect density. In this paper, we report the results of photoluminescence (PL), stimulated emission (SE), X-ray diffraction, and high-resolution tunneling electron microscopy on InGaN/GaN quantum well structures grown with MOCVD. In material analyses, we observed clear indium aggregation and phase separation structures. With a higher nominal indium content, the indium composition fluctuation becomes more prominent. In optical measurements, we observed the S-shape PL peak variation as a function of temperature. The turning points of the S-shape variation relies on the nominal indium content. Meanwhile, we observed a two-peak feature in the SE spectra. The short- and long-wavelength peaks correspond to the carrier recombination of free-carrier states and localized states.","PeriodicalId":250878,"journal":{"name":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130822753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Tilt locking: a new technique for locking a laser to an optical cavity 倾斜锁定:一种将激光锁定在光学腔内的新技术

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910336

D. Shaddock, M. Gray, B. Slagmolen, D. McClelland

引用次数: 0

High-power Ti:sapphire regenerative amplifier operating at 50 Hz with high beam quality 高功率Ti:蓝宝石再生放大器工作在50赫兹高光束质量

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909996

S. Ito, T. Miura, Z. Zhang, A. Endo, K. Tbrizuka

引用次数: 0

Optical forces on micrometer-sized cross-type rotator held by optical tweezers 光学镊子夹住微米大小的十字型旋转器上的光学力

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910079

Y. Ohmachi, T. Yanagisawa, M. Hayakawa, E. Higurashi

引用次数: 0

The arrays of phase-locked lasers 锁相激光器阵列

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909833

A. F. Glova, E. Lebedev, A. Lysikov, S.B. Shchetnikov

引用次数: 0

Observation of a dip in the spectrum of noise after propagation in an optical fiber 对噪声在光纤中传播后的频谱变化的观察

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.910224

J. M. Chavez Boggio, S. Tenenbaum, A. Guimaraes, H. Fragnito

{"title":"Observation of a dip in the spectrum of noise after propagation in an optical fiber","authors":"J. M. Chavez Boggio, S. Tenenbaum, A. Guimaraes, H. Fragnito","doi":"10.1109/CLEOE.2000.910224","DOIUrl":"https://doi.org/10.1109/CLEOE.2000.910224","url":null,"abstract":"Summary form only given. We report on the observation of a dip in the optical noise spectrum induced by a laser (frequency /spl omega//sub 1/). The dip occurs always at the frequency /spl omega//sub d/=2/spl omega//sub 0/-/spl omega//sub 1/, where /spl omega//sub 0/=2/spl pi/c//spl lambda//sub 0/ and /spl lambda//sub 0/ is the zero dispersion wavelength of the fiber, whenever the input noise power is high. For these measurements we used a tunable laser diode amplified by an erbium amplifier to 17.5 dBm and a 25 ion long dispersion shifted fiber (DSF) with measured /spl lambda//sub 0/=1551.3 nm. We show the input and output spectra with the laser tuned to four different wavelengths (the side lobes around the laser spectrum are due to the modulation instability effect). Since /spl omega//sub d/ mirrors the laser frequency relative to /spl omega//sub 0/, i.e., /spl omega//sub 0/=(/spl omega//sub d/+/spl omega//sub 1/)/2, one can use this effect as a fast and simple method to determine /spl lambda//sub 0/. We observed a dip in the noise spectrum and explained it as a FWM process involving annihilation of two input photons from noise. This effect can be used as a simple method to determine the zero-dispersion wavelength of optical fibers.","PeriodicalId":250878,"journal":{"name":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133654669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Spectroscopy, gain and laser operation of Tm-doped monoclinic crystals KY(WO/sub 4/)/sub 2/ and KYb(WO/sub 4/)/sub 2/ tm掺杂单斜晶KY(WO/sub 4/)/sub 2/和KYb(WO/sub 4/)/sub 2/的光谱、增益和激光操作

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909755

S. N. Bagayev, S. Vatnik, A. P. Majorov, A.A. Pavlujk

引用次数: 0

Influence of current anisotropy on self-focusing in photorefractive crystals 电流各向异性对光折变晶体自聚焦的影响

Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505) Pub Date : 2000-09-10 DOI: 10.1109/CLEOE.2000.909903

N. Korneev

引用次数: 0