Results 51 to 60 of about 171,254 (238)

Study on Linewidth and Phase Noise Characteristics of a Narrow Linewidth External Cavity Diode Laser

Sensors
In the field of inter-satellite laser communication, achieving high-quality communication and compensating for the Doppler frequency shift caused by relative motion necessitate lasers with narrow linewidths, low phase noise, and the ability to achieve ...
Sheng Hu, Puchu Lv, Chenggang Guan, Shasha Li, Haixin Qin, Xiaoqiang Li, Xuan Chen, Linfeng Zhan, Weiqi Wang, Yifan Xiao, Minghu Wu   +10 more
doaj   +1 more source

Narrow Linewidth Distributed Bragg Reflectors Based on InGaN/GaN Laser

Micromachines, 2019
A variety of emerging technologies, such as visible light communication systems, require narrow linewidths and easy-to-integrate light sources. Such a requirement could be potentially fulfilled with the distributed Bragg reflector (DBR) lasers, which are
Wuze Xie, Junze Li, Mingle Liao, Zejia Deng, Wenjie Wang, Song Sun   +5 more
doaj   +1 more source

Linewidth of single photon transitions in Mn$_{12}$-acetate

, 2001
We use time-domain terahertz spectroscopy to measure the position and linewidth of single photon transitions in Mn$_{12}$-acetate. This linewidth is compared to the linewidth measured in tunneling experiments.
A. Fort, A. Mukhin, A.A. Mukhin, A.A. Mukhin, Anne Laure Barra, Beth Parks, David N. Hendrickson, Evan Rumberger, Fernando Luis, Françoise Hartmann-Boutron, George Christou, H. Ibach, I. Mirebeau, Jonathan R. Friedman, Jonathan R. Friedman, Joseph Loomis, L. Thomas, M.R. Pederson, Michael N. Leuenberger, N.V. Prokofev, S. Hill, S.M.J. Aubin, Sheila M.J. Aubin, T. Lis, W. Wernsdorfer, Yicheng Zhong, Yicheng Zhong   +26 more
core   +1 more source

A 7-kW narrow-linewidth fiber amplifier assisted by optimizing the refractive index of the large-mode-area active fiber

High Power Laser Science and Engineering
The high-power narrow-linewidth fiber laser has become the most widely used high-power laser source nowadays. Further breakthroughs of the output power depend on comprehensive optimization of stimulated Brillouin scattering (SBS), stimulated Raman ...
Pengfei Ma, T. Yao, Wei Liu, Z. Pan, Yisha Chen, Huan Yang, Zilun Chen, Zefeng Wang, Pu Zhou, Jinbao Chen   +9 more
semanticscholar   +1 more source

Linewidth Narrowing of Mutually Injection Locked Semiconductor Lasers with Short and Long Delay

Applied Sciences, 2019
A simple and effective approach to semiconductor laser linewidth narrowing via mutual injection locking is proposed and demonstrated in both short and long delay regimes.
Weichao Ma, Bing Xiong, Changzheng Sun, Xu Ke, Jian Wang, Zhibiao Hao, Lai Wang, Yanjun Han, Hongtao Li, Jiadong Yu, Yi Luo   +10 more
doaj   +1 more source

Extremely low inhomogeneous broadening of exciton lines in shallow (In,Ga)As/GaAs quantum wells

, 2014
We study radiative linewidth of exciton resonance in shallow In$_x$Ga$_{1-x}$As/GaAs single quantum wells as a function of indium concentration in the range $x=0.02...0.10$ and well thickness in the range $L_Z=1...30$ nm using the method of Brewster ...
Dolgikh, Yu. K., Efimov, Yu. P., Eliseev, S. A., Ovsyankin, V. V., Petrov, V. V., Poltavtsev, S. V.   +5 more
core   +1 more source

Sub-kHz lasing of a CaF_2 Whispering Gallery Mode Resonator Stabilized Fiber Ring Laser

, 2012
We utilize a high quality calcium fluoride whispering-gallery-mode resonator to stabilize a simple erbium doped fiber ring laser with an emission frequency of 196 THz (wavelenght 1530 nm) to a linewidth below 650 Hz.
Alnis, B. Sprenger, Baaske, Barnes, Baumgartel, Chijioke, Conti, Dale, F. Sedlmeir, Fescenko, Grudinin, H. G. L. Schwefel, Kieu, Kieu, L. J. Wang, Lea, Lee, Li, Li, Liang, M. C. Collodo, Matsko, Numata, Premoli, Rubiola, S. Svitlov, Savchenkov, Sprenger, Sprenger, Vahala, Wang   +30 more
core   +1 more source

Temperature dependence of nonlinear auto-oscillator linewidths: Application to spin-torque nano-oscillators

, 2008
The temperature dependence of the generation linewidth for an auto-oscillator with a nonlinear frequency shift is calculated. It is shown that the frequency nonlinearity creates a finite correlation time, tau, for the phase fluctuations.
A. N. Slavin, H. Risken, Joo-Von Kim, V. S. Tiberkevich   +3 more
core   +1 more source

High-power sub-kHz linewidth lasers fully integrated on silicon

Optica, 2019
We demonstrate a fully integrated extended distributed Bragg reflector (DBR) laser with ∼1  kHz linewidth and over 37 mW output power, as well as a ring-assisted DBR laser with less than 500 Hz linewidth.
Duanni Huang, M. Tran, Joel Guo, J. Peters, T. Komljenovic, A. Malik, P. Morton, J. Bowers   +7 more
semanticscholar   +1 more source

Radiation linewidth of a long Josephson junction in the flux-flow regime

, 1996
Theoretical model for the radiation linewidth in a multi-fluxon state of a long Josephson junction is presented. Starting from the perturbed sine-Gordon model with the temperature dependent noise term, we develop a collective coordinate approach which ...
A. A. Golubov, A. V. Ustinov, A.J. Dahm, B. A. Malomed, B.A. Malomed, D.W. McLaughlin, E. Joergensen, M. Büttiker, M.J. Stephen, V.P. Koshelets   +9 more
core   +1 more source