Results 21 to 30 of about 7,974,684 (289)
IEEE 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
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Single mode interband cascade lasers based on lateral metal gratings [PDF]
, 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
Photonics, 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
Single longitudinal mode fiber ring laser [PDF]
Optics & 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
IEEE 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
IEEE 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
Single Longitudinal Mode Lasers by Using Artificially Controlled Backscattering Erbium Doped Fibers
IEEE 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
Longitudinal effects of social background on educational and occupational pathways within early and strong school tracking [PDF]
, 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
IEEE Photonics Journal, 2019 High-power single-longitudinal-mode regrowth-free gain-coupled distributed feedback laser diode based on ridge waveguide with periodic current injection is achieved at 990 nm. Our device is fabricated only by standard i-line lithography with micron-scale
Yu-Xin Lei +14 more
doaj +1 more source
Compound Cavity Passively Q-Switched Single-Longitudinal-Mode Diode-Pumped Laser
Frontiers 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