Results 11 to 20 of about 7,974,684 (288)

Tunable Single-Longitudinal-Mode High-Power Fiber Laser

open access: yesInternational Journal of Optics, 2012
We report a novel CW tunable high-power single-longitudinal-mode fiber laser with a linewidth of ∼9 MHz. A tunable fiber Bragg grating provided wavelength selection over a 10 nm range. An all-fiber Fabry-Perot filter was used to increase the longitudinal
Jonas K. Valiunas, Gautam Das
doaj   +2 more sources

Wavelength-tunable single longitudinal mode fiber optical parametric oscillator

open access: yesOptics Express, 2017
We demonstrate a ring cavity single longitudinal mode fiber optical parametric oscillator using a passive sub-ring cavity and an unpumped erbium doped fiber configured with an external fiber mirror for single mode selection. The unpumped erbium doped fiber uses its saturable absorption characteristic to generate a self-induced narrowband filter when ...
L. T. Lim   +2 more
openaire   +3 more sources

Electro-Optic Fabry-Perot Etalon for Frequency Stabilization in in Single-Longitudinal Mode Nd:YVO4 Laser

open access: yesApplied Sciences
Single-longitudinal mode lasers are widely used as light sources in coherent lidars due to their narrow linewidth and long coherence length. However, we observed spontaneous frequency drift in a single-longitudinal mode laser, accompanied by the ...
Xiaojie Chen   +5 more
doaj   +2 more sources

How to control the laser emission in single longitudinal mode [PDF]

open access: yesOptica Pura y Aplicada, 2015
Producción ...
González Fernández, Verónica   +6 more
openaire   +2 more sources

Longitudinal-torsional complex-mode ultrasonic actuator for vibration-assisted drilling of CFRP

open access: yes, 2023
Carbon-fiber-reinforced plastic (CFRP) composites are intensively used in aircraft and aerospace industry thanks to their superior properties. Comparing to the conventional drilling (CD), vibration-assisted drilling (VAD) is a novel machining technique ...
Xiaoxue Wang (311457)   +2 more
core   +7 more sources

Broadband single-mode microfiber coupler for OCT [PDF]

open access: yes, 2009
We present a bi-conical microfiber coupler (MFC) with a specifically designed transition region as an efficient tool to filter higher-order modes in multimode waveguides.
Jung, Y.   +2 more
core   +2 more sources

Study of the Effects of Cavity Mode Spacing on Mode-Hopping in III–V/Si Hybrid Photonic Crystal Lasers

open access: yesCrystals, 2021
We present a design methodology for hybrid lasers to realise mode-hop free operation by controlling the cavity mode spacing. In this study, a compact hybrid photonic crystal laser (H-PhCL) was employed which allowed a reduction of the Fabry–Perot length ...
Praveen K. J. Singaravelu   +5 more
doaj   +1 more source

Theoretical analysis of the longitudinal mode behavior due to mode competition in bulk semiconductor lasers

open access: yesAIP Advances, 2023
The following typical longitudinal mode phenomena occur in bulk semiconductor lasers: single-mode or multimode operation for longitudinal modes, longitudinal mode suppression except for a dominant mode, asymmetry of the spectral profile of longitudinal ...
Toshiaki Mizukami
doaj   +1 more source

Single-mode tunable laser emission in the single-exciton regime from colloidal nanocrystals [PDF]

open access: yes, 2013
Whispering-gallery-mode resonators have been extensively used in conjunction with different materials for the development of a variety of photonic devices.
Brambilla, Gilberto   +7 more
core   +1 more source

Mode-Hopping-Free Single-Longitudinal-Mode Actively Q-Switched Ring Cavity Fiber Laser With an Injection Seeding Technique

open access: yesIEEE Photonics Journal, 2017
With a fiber pigtailed electro-optic modulator as the active Q-switch, mode-hopping-free single-longitudinal-mode pulses are generated by a ring cavity fiber laser based on the injection seeding technique.
Wencai Li   +6 more
doaj   +1 more source

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