Results 251 to 260 of about 292,869 (302)

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, , Pérez-García, , Martín, , Guerra   +3 more
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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, Jipeng, Lin, Helen M, Pask, Richard P, Mildren, Stephen C, Webster, Nils, Hempler, Graeme P A, Malcolm, David J, Spence   +7 more
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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
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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, Hussein, Kotb, Diaa, Khalil   +2 more
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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, R. D. Burnham, W. Streifer   +2 more
openaire   +1 more source

Single Longitudinal Mode Green Diode Laser

Frontiers in Optics 2016, 2016
We observed that a green diode laser shows single longitudinal mode output at low operation current, and its frequency can be tuned by adjusting the operation temperature and operational current. The behavior of laser modes with operational current was also investaigated.
Yi-Hsi Chen, Wei-Chen Lin, Jow-Tsong Shy, Hsiang-Chen Chui   +3 more
openaire   +1 more source

Mode evolution mechanism of Pr3+:YLF single longitudinal mode laser

Applied Physics B, 2020
We develop a theoretical model of multimode rate equation that accurately describes mode evolution mechanism of prelase Q-switched Pr3+:YLF single longitudinal mode (SLM). We find that it is important to consider the effect of gain difference when calculating the mode competition time accurately.
Long Jin, WeiCheng Dai, YongJi Yu, Yuan Dong, GuangYong Jin   +4 more
openaire   +1 more source

Single longitudinal mode operation of an XeCl laser

Applied Physics Letters, 1984
Single longitudinal mode output from a directly tuned, long pulse, magnetically switched XeCl laser is reported for the first time. Mode control was achieved using spatial aperatures and intracavity etalons. The narrow bandwidth laser output was diffraction limited with an optical pulse width of 30 ns, which would yield a transform limited bandwidth of
Thomas J. Pacala, I. Stuart McDermid, James B. Laudenslager   +2 more
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Widely tunable single-longitudinal-mode pulsed dye laser

Optics Letters, 1989
We have developed a simple cavity-length-stabilization method appropriate for single-longitudinal-mode pulsed lasers that use grazing-incidence gratings. Our technique relies on the detection of aminute (
T D, Raymond, P, Esherick, A V, Smith
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Efficient single-longitudinal-mode Nd:YAG laser

IEEE Journal of Quantum Electronics, 1972
A continuous TEM 00 power of more than \frac{1}{2} W has been obtained from a single-longitudinal-mode (SLM) Nd:YAG laser pumped with a 1-kW tungsten-iodine lamp. Spatial hole burning, the cause of multilongitudinal mode (MLM) oscillation, was eliminated by placing the rod between two quarter-wave plates.
openaire   +1 more source