Results 21 to 30 of about 112,017 (279)

Brillouin Backscattering Light Properties of Chaotic Laser Injecting Into an Optical Fiber

IEEE Photonics Journal, 2017
Laser diode-based optical chaos is attractive for the fundamental physics as well as practical tasks in such as secure communications, random number generation, and fiber sensing.
Mingjiang Zhang, Hui Liu, Jianzhong Zhang, Yi Liu, Ruixia Liu   +4 more
doaj   +1 more source

Linewidth narrowing in free-space-running diamond Brillouin lasers

High Power Laser Science and Engineering, 2023
This study analyzes the linewidth narrowing characteristics of free-space-running Brillouin lasers and investigates the approaches to achieve linewidth compression and power enhancement simultaneously.
Duo Jin, Zhenxu Bai, Zhongan Zhao, Yifu Chen, Wenqiang Fan, Yulei Wang, Richard P. Mildren, Zhiwei Lü   +7 more
doaj   +1 more source

Linewidth and frequency jitter measurement of an erbium-doped fiber ring laser by using a loss-compensated, delayed self-heterodyne interferometer [PDF]

, 1992
The single-mode line width of erbium-doped, single-frequency, fiber ring laser has been measured by using a newly developed loss-compensated delayed self-heterodyne interferometer that has a resolution of less than 600 Hz.
Dawson, Jay W., Park, Namkyoo, Vahala, Kerry J.   +2 more
core   +1 more source

Experimental Investigation on Spectral Linewidth and Relative Intensity Noise of High-Power Single-Frequency Polarization-Maintained Thulium-Doped Fiber Amplifier

IEEE Photonics Journal, 2016
We investigate the spectral linewidth and relative intensity noise (RIN) of an all-fiber single-frequency polarization-maintained master oscillator and power amplifier at 1925 nm.
Haiwei Zhang, Yang Cao, Wei Shi, Quan Sheng, Xiaolei Bai, Shijie Fu, Jianquan Yao   +6 more
doaj   +1 more source

The Influence of Noise Floor on the Measurement of Laser Linewidth Using Short-Delay-Length Self-Heterodyne/Homodyne Techniques

Micromachines, 2022
Delayed self-heterodyne/homodyne measurements based on an unbalanced interferometer are the most used methods for measuring the linewidth of narrow-linewidth lasers.
Zhongan Zhao, Zhenxu Bai, Duo Jin, Xiaojing Chen, Yaoyao Qi, Jie Ding, Bingzheng Yan, Yulei Wang, Zhiwei Lu, Richard P. Mildren   +9 more
doaj   +1 more source

Phonon dispersion and lifetimes in MgB2 [PDF]

, 2003
We measure phonon dispersion and linewidth in a single crystal of MgB_2 along the Gamma-A, Gamma-M and A-L directions using inelastic X-Ray scattering.
Abhay Shukla, Christophe Bellin, D. Daghero, Francesco Mauri, G. Grimvall, H. J. Choi, J. Jun, J. Karpinski, K. Parlinski, Matteo Calandra, Matteo d’Astuto, Michael Krisch, Michele Lazzeri, P. B. Allen, P. B. Allen, S. M. Kazakov   +15 more
core   +2 more sources

Laser Linewidth Compression in Cascading Brillouin Random Fiber Lasers

IEEE Photonics Journal, 2022
Cascaded Brillouin random fiber lasers (BRFLs) with laser linewidth compression were theoretically and experimentally demonstrated. Thanks to photon-phonon coupled interplay as well as randomly distributed feedback along silica fibers, the coherent time ...
Yikun Jiang, Liang Zhang, Haozhe Shou, Haoran Xie, Jilin Zhang, Yichun Li, Ying Zhang, Fufei Pang, Tingyun Wang   +8 more
doaj   +1 more source

A 20 W, Less-Than-1-kHz Linewidth Linearly Polarized All-Fiber Laser

Applied Sciences, 2018
We report a continuous-wave high-output power and narrow-linewidth all-fiber laser at 1550 nm with the master oscillator power amplifier (MOPA) configuration. An all-fiber distributed feedback seed laser was boosted by three cascaded fiber amplifiers. In
Mingyuan Xue, Cunxiao Gao, Linquan Niu, Shaolan Zhu, Chuandong Sun, Jian Zhang, Haodong He   +6 more
doaj   +1 more source

Applications of 19F-NMR in Fragment-Based Drug Discovery

Molecules, 2016
19F-NMR has proved to be a valuable tool in fragment-based drug discovery. Its applications include screening libraries of fluorinated fragments, assessing competition among elaborated fragments and identifying the binding poses of promising hits.
Raymond S. Norton, Eleanor W. W. Leung, Indu R. Chandrashekaran, Christopher A. MacRaild   +3 more
doaj   +1 more source

Convolution Error Reduction for a Fabry–Pérot-Based Linewidth Measurement: A Theoretical and Experimental Study

Photonics, 2022
Linewidth measurement of a short pulse single-longitudinal mode laser with a low repetition rate has been a big challenge. Although the Fabry–Pérot (FP) etalon in combination with a beam profiler is an effective approach to measure the linewidth, the ...
Xuanning Hun, Zhenxu Bai, Jianping Wang, Bin Chen, Can Cui, Yulei Wang, Zhiwei Lu   +6 more
doaj   +1 more source