Results 261 to 270 of about 149,462 (299)

Single-longitudinal-mode(SLM) fiber ring laser based on semicircular single mode fiberstructure

2017 16th International Conference on Optical Communications and Networks (ICOCN), 2017
A single longitudinal mode (SLM) fiber ring laser based on a semicircular single mode fiber (SSMF) structure is proposed. In the fiber ring laser, a piece of erbium doped fiber (EDF) pumped by a 980 nm semiconductor laser diode (LD) through a wavelength division multiplexer (WDM).A fiber Bragg grating (FBG) is used as a filter.
Jiewen Li, Xiaohui Fang, Bairu Xu, Qingpin He, Jun Peng, Zhifeng Chen, Binzhi Zhang, Chengyun Zhang   +7 more
openaire   +1 more source

RTP Q-switched single-longitudinal-mode Nd:YAG laser with a twisted-mode cavity

Applied Optics, 2015
This paper describes a high pulse repetition frequency Nd:YAG twisted-mode laser that uses an RTP crystal as the electro-optic Q-switch. Stable single-longitudinal-mode laser beams at 1, 5, and 10 kHz were obtained with a linewidth less than 0.1 GHz.
Zhenhua, Cong, Zhaojun, Liu, Zengguang, Qin, Xingyu, Zhang, Shiwu, Wang, Han, Rao, Qiang, Fu   +6 more
openaire   +2 more sources

High-efficiency single-longitudinal-mode laser

OSA Annual Meeting, 1993
This is a new type laser composed by two resonators. It conquers the contradiction between the efficiency and the quality of single longitudinal mode (SLM), and there is no strict matching requirement for resonator and modes of injection locking.
openaire   +1 more source

Single Longitudinal Mode Modified CSP Injection Laser for Single-Mode Optical Fiber

1982
Stable single transverse and longitudinal mode cw operation has been demonstrated using a newly developed gaussian channel substrate (GCSP) laser structure. These devices operate in excess of 14mW and are predominately single longitudinal mode over their entire operating range.
A. D. Ceruzzi, T. E. Stockton, J. B. McNeely   +2 more
openaire   +1 more source

Low-order longitudinal modes of single-component plasmas

Physics of Plasmas, 1995
The low-order modes of spheroidal, pure electron plasmas have been studied experimentally, both in a cylindrical electrode structure and in a quadrupole trap. Comparison is made between measurements of mode frequencies, recent analytical theories, and numerical simulations.
M. D. Tinkle, R. G. Greaves, C. M. Surko
openaire   +1 more source

Resonantly pumped single-longitudinal-mode Ho:YAG laser

Applied Physics B, 2016
We demonstrated a 1.9-μm-pumped high-efficiency single-longitudinal-mode Ho:YAG laser with intra-cavity etalons for the first time. By inserting the F–P etalons into the laser cavity, single-longitudinal-mode Ho:YAG lasing was achieved at a wavelength of 2081.2 nm.
Y. L. Ju, W. Liu, B. Q. Yao, T. Y. Dai, J. Wu, X. M. Duan, Y. J. Shen, Y. Z. Wang   +7 more
openaire   +1 more source

Single Transverse and Longitudinal Mode Operation of Semiconductor Lasers

Integrated and Guided Wave Optics, 1978
Single transverse and longitudinal mode operation of semiconductor lasers is an ultimate objective of laser device designing. It has recently been demonstrated that the transverse mode instability encountered in conventional stripe-geometry (AlGa)As lasers can be prevented by introducing a passive waveguide structure: a channeled-substrate-planar (CSP)
M. Nakamura, T. Kuroda, J. Umeda, K. Aiki, R. Ito   +4 more
openaire   +1 more source

Tunable, Single-Longitudinal Mode 2 μm VECSEL

Frontiers in Optics + Laser Science APS/DLS, 2019
A tunable, 2 μm, narrow linewidth vertical-external-cavity surface-emitting laser (VECSEL) is demonstrated. Single-longitudinal mode operation with sub-MHz linewidth is achieved over a tuning range of 80 nm.
Jennifer M. Reed, Robert G. Bedford
openaire   +1 more source

The study of 32-mode single crystal longitudinal transducer

2016 IEEE/OES China Ocean Acoustics (COA), 2016
There are many advantages of broadband transducers, such as reduction of signal distortion, widening the security about information transmission, and reducing the ratio of false codes. The use of three 32-mode single crystal pieces, a thin light beryllium alloy head mass, and a thick heavy tungsten alloy tail mass, can expand the bandwidth of the ...
Kai Zhang, Yangwei Chen, Kangyi Peng
openaire   +1 more source

Single-longitudinal-mode laser as a discrete dynamical system

Journal of the Optical Society of America B, 1985
A solid-state laser running on a single longitudinal mode can show chaotic time behavior if several transverse modes are excited. The temporal development of the laser is approximated by a Kirchhoff integral together with a rate equation for the inversion.
F. Hollinger, Chr. Jung
openaire   +1 more source