Results 201 to 210 of about 146,576 (264)

A tunable and single-longitudinal-mode Ho:YLF laser

Infrared Physics and Technology, 2016
Abstract A 1.94 μm Tm-doped fiber laser pumped tunable single-longitudinal-mode Ho:YLF laser with double etalons was reported for the first time. The maximum single-longitudinal-mode output power of 345 mW at 2051.6 nm was achieved at the absorbed pump power of 11.9 W, corresponding to a slope efficiency of 5.5% and an optical conversion efficiency ...
Y Z Wang
exaly   +2 more sources

Transverse-mode selection in single-longitudinal-mode lasers

Physical Review A, 1996
In this paper we analyze the transverse pattern-forming characteristics of a two-level and single-longitudinalmode laser. The corrections to the classical empty cavity modes due to pumping and losses are specifically considered, leading to different excitation rates for the different transverse modes.
, Calderón   +3 more
openaire   +2 more sources

Single-longitudinal-mode ring diamond Raman laser

2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2017
We demonstrate a single-longitudinal-mode ring diamond Raman laser, pumped by a tunable single-mode Ti:sapphire laser. Two methods to achieving unidirectional operation have been demonstrated: increasing gain for one direction using a reinjecting mirror and increasing loss for one direction using sum frequency mixing in BBO.
Ondrej, Kitzler   +7 more
openaire   +2 more sources

Single-longitudinal-mode lasing of Ho:Tm:YAG at 2091 μm

Applied Optics, 1989
This Communication demonstrates that single-longitudinal-mode operation of Ho:Tm:YAG at 2.091 Am using a laser diode pumped, monolithic crystal.
M E, Storm, W W, Rohrbach
openaire   +2 more sources

Single-longitudinal-mode broadband tunable random laser

Optics Letters, 2017
In this work, we demonstrate a broadband tunable single-longitudinal-mode (SLM) random laser based on Rayleigh backscattering in a standard single-mode fiber. The wide tuning range of this SLM fiber laser over 1500-1570 nm is demonstrated with a linewidth of 4.5-30 kHz.
Heba, Shawki   +2 more
openaire   +2 more sources

Single longitudinal mode operation of diode lasers

Applied Physics Letters, 1977
We report single longitudinal mode operation of conventional double-heterostructure GaAs/GaAlAs diode lasers achieved by heavy p-type doping of the active region. At 77 °K a broad-area device pumped with a rectangular current pulse exhibited single longitudinal mode operation up to 2.8 times threshold, which was the limit of the pulser.
D. R. Scifres   +2 more
openaire   +1 more source

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