Results 21 to 30 of about 36,081 (260)

Frequency stabilization of an ultraviolet semiconductor disk laser [PDF]

open access: yes, 2013
We report a tunable, narrow-linewidth UV laser based on intracavity second-harmonic generation in a red semiconductor disk laser. Single-frequency operation is demonstrated with a total UV output power of 26 mW. By servo-locking the fundamental frequency
Hastie, Jennifer   +2 more
core   +1 more source

Narrow-linewidth fiber laser operating at 155 μm [PDF]

open access: yesOptics Letters, 1987
We report the fabrication and operation of an Er(3+)-doped silica single-mode fiber laser operating at 1.55 microm and using a distributed fiber grating to provide feedback. The output bandwidth was measured as 0.04 nm, significantly narrower than the conventional cavity design. The laser had a threshold of 13 mW and a slope efficiency of 5%.
Jauncey, I.M.   +3 more
openaire   +4 more sources

Recent progress on narrow-linewidth crystalline bulk Raman lasers

open access: yesResults in Physics, 2020
Narrow-linewidth, solid-state Raman lasers are of significant importance for numerous applications. In last decade, variety of methods have been utilized to suppress the spectral linewidth of Raman laser output.
Quan Sheng   +5 more
doaj   +1 more source

High-Power Narrow-Linewidth Tunable 670.8-nm Master Oscillator Power Amplifier With High Efficiency

open access: yesIEEE Photonics Journal, 2017
A highly efficient 670.8-nm high-power narrow-linewidth wavelength-tunable laser source with master oscillator power amplifier structure is demonstrated, which yielded CW output power of 4.5 W with spectral linewidth of 0.3 pm and mode-hop free tuning ...
Hao Wu   +5 more
doaj   +1 more source

Tunable Narrow-Linewidth Ring Laser Based on the Polarization Conversion in a Tapered Fiber-Coupled Whispering Gallery Mode Resonator

open access: yesCrystals, 2021
Based on the polarization conversion in a tapered fiber-coupled whispering gallery mode (WGM) system, a simple-structured narrow linewidth band-pass filter was fabricated and a narrow linewidth ring laser was demonstrated. With a fiber Bragg grating (FBG)
Pengfa Chang   +5 more
doaj   +1 more source

Narrow linewidth, single frequency semiconductor laser with a phase conjugate external cavity mirror [PDF]

open access: yes, 1986
We measure the spectral characteristics of an external cavity semiconductor laser which uses a phase conjugate mirror for its external reflection. This device has significant advantages over the conventional external cavity system owing to the self ...
Cronin-Golomb, Mark   +5 more
core   +1 more source

Single-Longitudinal Mode Ytterbium-Doped Fiber Laser with Ultra-Narrow Linewidth and High OSNR Using a Double-Ring Passive Subcavity

open access: yesPhotonics, 2023
A continuous wave (CW) ultra-narrow linewidth single-longitudinal mode (SLM) ytterbium-doped fiber laser (YDFL) based on narrowband fiber Bragg grating (NB-FBG) and double-ring passive subcavity (DR-PS) was studied.
Han Wen   +3 more
doaj   +1 more source

1.55 μm Narrow-Linewidth Pulsed Laser Based on MgO:PPLN

open access: yesPhotonics, 2023
A high-power narrow-linewidth 1.55 μm pulsed laser, based on MgO:PPLN OPO, has been achieved using a F–P etalon. The pump source is a 1064 nm acousto-optical (AO) Q-switched Nd:YAG laser with a repetition rate of 10 kHz.
Yaling Yang   +9 more
doaj   +1 more source

A Large Area Fiber Optic Gyroscope on multiplexed fiber network [PDF]

open access: yes, 2013
We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km2 and coexists with Internet data traffic.
A. Mura   +18 more
core   +3 more sources

Advances in narrow linewidth diode lasers [PDF]

open access: yesSCIENTIA SINICA Informationis, 2019
The era of smart travel has arrived, and the need for high precision lidar detection technology is increasing. With the advantages of high resolution, a strong anti-active jamming ability, small volume, light weight, and low cost, new solid-state lidars can meet the requirements of intelligent cars in the future.
Xingkai Lang   +9 more
openaire   +1 more source

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