Results 21 to 30 of about 7,974,684 (288)

Single mode interband cascade lasers based on lateral metal gratings [PDF]

open access: yes, 2014
The authors are grateful to the European Union for financial support of this work within the FP7 project “WideLase” (No. 318798).Single mode distributed feedback (DFB) interband cascade lasers were realized by placing metal gratings laterally to dry ...
Koeth, Johannes   +9 more
core   +1 more source

Single Longitudinal Mode Lasers by Using Artificially Controlled Backscattering Erbium Doped Fibers

open access: yesIEEE Access, 2021
In this work, we propose and experimentally demonstrate a new distributed short linear cavity fiber laser. At one of the cavity ends, fabricated by a commercial femtosecond fiber laser chirped pulse amplifier, an artificially controlled backscattering ...
Rosa Ana Perez-Herrera   +4 more
doaj   +1 more source

Single longitudinal mode fiber ring laser [PDF]

open access: yesOptics & Laser Technology, 2018
In this work, a dual-wavelength fiber ring laser working on the SLM regime is proposed and experimentally verified. A proof-of-concept device has been tested employing high precision small-sized SLM fiber lasers to complement the feedback produced by a passive FBG.
Rodríguez Cobo, Luis   +4 more
openaire   +2 more sources

Compound Cavity Passively Q-Switched Single-Longitudinal-Mode Diode-Pumped Laser

open access: yesFrontiers in Physics, 2022
A compact solid-state single-longitudinal-mode (SLM) Q-switched laser based on a compound cavity is demonstrated. SLM operation is achieved through the enhancement of mode competition (via manipulation of the effective reflectivity of the resonator ...
Bin Chen   +18 more
doaj   +1 more source

Single Longitudinal Mode Optofluidic Microring Laser Based on a Hollow-Core Microstructured Optical Fiber

open access: yesIEEE Photonics Journal, 2017
A single longitudinal mode microring dye laser based on a simplified hollow-core microstructured optical fiber (SHMOF) is proposed and demonstrated. The dye laser uses a submicron thickness silica microring embedded in the SHMOF as resonator and has the ...
Jie Yu   +6 more
doaj   +1 more source

Narrow-Strip Single-Longitudinal-Mode Laser Based on Periodic Anodes Defined by i-Line Lithography

open access: yesIEEE Photonics Journal, 2018
A low-cost regrowth-free narrow-strip single-longitudinal-mode diode laser, based on periodic anodes defined only by i-line lithography is proposed. With the periodic anodes separated by surface insulated grooves acting as a 44th-order gain grating, a ...
Feng Gao   +11 more
doaj   +1 more source

A Stabilized Single-Longitudinal-Mode and Wide Wavelength Tunability Erbium Laser

open access: yesPhotonics, 2022
An erbium-doped fiber (EDF) laser with quad-ring is designed to reach the broad continuous-wave (CW) tunability and single-longitudinal-mode (SLM) behavior.
Li-Ci Chen   +5 more
doaj   +1 more source

Single-Longitudinal-Mode Thulium-Doped Fiber Laser With Sub-kHz Linewidth Based on a Triple-Coupler Double-Ring Cavity

open access: yesIEEE Access, 2022
We propose and demonstrate a stable single-longitudinal mode (SLM) thulium-doped fiber laser (TDFL) with a Fabry- Pérot (F-P) fiber Bragg grating (FBG) filter and a triple-coupler based double-ring cavity (TC-DRC) filter.
Ting Li   +9 more
doaj   +1 more source

Longitudinal effects of social background on educational and occupational pathways within early and strong school tracking [PDF]

open access: yes, 2013
peer reviewedTransitions from education to work are subject to person-related factors and institutional opportunity structures. Life course research increasingly focuses on longitudinal effects of social background on educational and occupational ...
Bergman, Manfred Max   +2 more
core   +2 more sources

13.5 μJ, 20 kHz Repetition Rate, Single Frequency Pr3+:YLF Master Oscillator Power Amplifier System

open access: yesPhotonics, 2023
This article describes a master oscillator and power amplifier (MOPA) system with a single longitudinal mode (SLM) and high-repetition-frequency Pr3+:YLF active medium that was end-pumped by two 444 nm laser diodes.
Weicheng Dai   +4 more
doaj   +1 more source

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