Results 41 to 50 of about 3,384,511 (380)

43  μm fiber laser in CO2-filled hollow-core silica fibers

open access: yesOptica, 2019
Rare-earth-doped fiber lasers at 3–5 μm can provide a variety of applications in defense, security, medicine, and so on. Limited by the maximum phonon energy of silicate glass host at room temperature, these lasers are normally based on soft-glass ...
Yulong Cui   +8 more
semanticscholar   +1 more source

Generation of tunable q-switched erbium-doped fiber laser based on graphite flakes saturable absorber [PDF]

open access: yes, 2020
Pulsed fiber laser has tremendous application in laser processing and laser sensor. The key element to produce a passively Q-switched fiber laser is by using a saturable absorber (SA).
Nik Mahmud, Nik Noor Haryatul Eleena
core  

Generation of Arbitrary Frequency Chirps with a Fiber-Based Phase Modulator and Self-Injection-Locked Diode Laser [PDF]

open access: yes, 2006
We present a novel technique for producing pulses of laser light whose frequency is arbitrarily chirped. The output from a diode laser is sent through a fiber-optical delay line containing a fiber-based electro-optical phase modulator. Upon emerging from
Bakos   +26 more
core   +2 more sources

Interferometric distributed sensing system with phase optical time-domain reflectometry

open access: yesPhotonic Sensors, 2016
We demonstrate a distributed optical fiber sensing system based on the Michelson interferometer of the phase sensitive optical time domain reflectometer (φ-OTDR) for acoustic measurement. Phase, amplitude, frequency response, and location information can
Chen Wang   +5 more
doaj   +1 more source

Fiber Raman Amplifiers and Fiber Raman Lasers [PDF]

open access: yesMicromachines, 2020
Stimulated Raman scattering (SRS) is a nonlinear optical effect, observed for the first time in 1962, which lies at the heart of fiber Raman amplifiers and fiber Raman lasers [...]
openaire   +5 more sources

Research on the surface subsidence monitoring technology based on fiber Bragg grating sensing

open access: yesPhotonic Sensors, 2016
In order to monitor the process of surface subsidence caused by mining in real time, we reported two types of fiber Bragg grating (FBG) based sensors.
Jinyu Wang   +8 more
doaj   +1 more source

Efficient and Broadband Emission in Dy3+-Doped Glass-Ceramic Fibers for Tunable Yellow Fiber Laser

open access: yesNanomaterials, 2023
Yellow lasers are of great interest in biology, medicine and display technology. However, nonlinear emission of near-infrared lasers at yellow still presents particularly complex optical alignment to date.
Qianyi Chen   +9 more
doaj   +1 more source

Various fiber optic microlenses fabricated using a large diameter splicing system [PDF]

open access: yesEPJ Web of Conferences
We developed and fabricated various types of microlenses on optical fiber end facets using a large diameter splicing (LDS) system and analyzed the obtained beam profiles. Numerical simulations support our experimental results.
Matczak Szymon   +2 more
doaj   +1 more source

Real-time multispeckle spectral-temporal measurement unveils the complexity of spatiotemporal solitons

open access: yesNature Communications, 2021
Observing 3D dissipative solitons is very challenging since their formation is stochastically and not repeatable. Here, the authors report the real-time multispeckle spectral-temporal observation of dissipative solitons in an optical fiber and analyze ...
Yuankai Guo   +5 more
doaj   +1 more source

Ultra-broadband wavelength-swept Tm-doped fiber laser using wavelength-combined gain stages [PDF]

open access: yes, 2015
A wavelength-swept thulium-doped fiber laser system employing two parallel cavities with two different fiber gain stages is reported. The fiber gain stages were tailored to provide emission in complementary bands with external wavelength-dependent ...
Agger   +15 more
core   +1 more source

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