Results 71 to 80 of about 20,267 (190)

Coherent, multi-heterodyne spectroscopy using stabilized optical frequency combs

, 2007
The broadband, coherent nature of narrow-linewidth fiber frequency combs is exploited to measure the full complex spectrum of a molecular gas through multi-heterodyne spectroscopy.
C. Gohle, Ian Coddington, Nathan Newbury, W. Demtröder, William Swann   +4 more
core   +2 more sources

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, Tianfu Yao, Wei Liu, Zhiyong Pan, Yisha Chen, Huan Yang, Zilun Chen, Zefeng Wang, Pu Zhou, Jinbao Chen   +9 more
doaj   +1 more source

Narrow Linewidth 510 nm Laser via Single-Pass Frequency-Tripling by Waveguide PPLNs

Photonics
A single-frequency narrow linewidth green laser at 510 nm is a vital component for the study of Cesium Rydberg atoms. Here, we demonstrate a 510 nm laser based on single-pass second-harmonic generation (SHG) and sum-frequency generation (SFG) via ...
Yanlin Chen, Jing Zhang, Xiaolang Qiu, Suo Wang, Chuanchuan Li, Haiyang Yu, Xin Wei   +6 more
doaj   +1 more source

Observation of Inter-layer Excitons in MoSe2 Single Crystals

, 2017
Interlayer excitons are observed coexisting with intralayer excitons in bi-layer, few-layer, and bulk MoSe2 single crystals by confocal reflection contrast spectroscopy.
Deng, Hui, Horng, Jason, Koch, Stephan W., Paik, Eunice Y., Stroucken, Tineke, Zhang, Long   +5 more
core   +1 more source

Mode-hop-free wavelength-tunable semiconductor lasers covering the S+C+L band via external-cavity optical feedback

Frontiers in Physics
A wide mode-hop-free and narrow-linewidth tunable laser diode source employing a Littman-Metcalf configuration with a diffraction grating is developed. We conducted a series of experiments to evaluate the tuning characteristics and spectral linewidth of ...
Liwen Sheng, Liwen Sheng, Liwen Sheng, Zhiming Liu, Jianjun Wang, Lei Liu, Bingqi Yin, Zhihui Zhang, Shuai Zhou, Lin Huang, Lin Huang, Lin Huang   +11 more
doaj   +1 more source

High-Power Narrow-Linewidth Q-Switched TEM₀₀ Mode 355-nm Laser

IEEE Photonics Journal, 2018
We report on a high pulse energy, narrow-linewidth, Q-switched ultraviolet (UV) laser at 355 nm from the third harmonic generation (THG) of a 1064-nm Nd:YAG master oscillator power amplifier (MOPA) system.
Yujiao Li, Wei Tu, Baoshang Wang, Nan Zong, Feng Yang, Fengfeng Zhang, Shenjin Zhang, Zhimin Wang, Qinjun Peng, Dafu Cui, Zuyan Xu   +10 more
doaj   +1 more source

Single-Frequency, Narrow-Linewidth Distributed Feedback Waveguide Laser in Al2O3:Er3+ on Silicon [PDF]

, 2010
A distributed feedback channel waveguide laser in erbium-doped aluminum oxide on a silicon substrate is reported. The optically pumped laser has a threshold pump power of 15 mW and emits 3 mW in single-frequency operation at 1545.2 nm wavelength with a ...
Agazzi, L., Bernhardi, E.H., Khan, M.R.H., Pollnau, M., Ridder, R.M. de, Roeloffzen, C.G.H., Wolferen, H.A.G.M. van, Wörhoff, K.   +7 more
core   +1 more source

All Polarization Maintaining Brillouin Erbium-Doped Fiber Laser With Sub-kHz Linewidth Using Saturated Absorber and Self-Injection Feedback

IEEE Photonics Journal
A narrow-linewidth all-polarization-maintaining (PM) Brillouin erbium-doped fiber laser (BEFL) is proposed and demonstrated experimentally, which employs erbium-doped fiber (EDF) acting as both the linear gain and the Brillouin gain medium.
Junsen Yang, Zhengkang Wang, Jianming Shang, Shiyou Xiao, Zhixue Li, Bin Luo, Tianwei Jiang, Song Yu   +7 more
doaj   +1 more source

Monolithic narrow-linewidth InGaAsP semiconductor laser for coherent optical communications [PDF]

A design for a monolithic narrow-linewidth InGaAsP diode laser has been developed using a multiple-quantum-well (MQW) extended-passive-cavity distributed-Bragg-reflector (DBR) laser design.
Enstrom, R. E., Longeway, P. A., Palfrey, S. L.   +2 more
core   +1 more source

Observation of Motion Dependent Nonlinear Dispersion with Narrow Linewidth Atoms in an Optical Cavity

, 2015
As an alternative to state-of-the-art laser frequency stabilisation using ultra-stable cavities, it has been proposed to exploit the non-linear effects from coupling of atoms with a narrow transition to an optical cavity.
Christensen, Bjarke T. R., Cooper, John, Holland, Murray, Matin, Rastin, Thomsen, Jan W., Tieri, David, Westergaard, Philip G., Ye, Jun   +7 more
core   +1 more source