Results 11 to 20 of about 7,518 (151)
Impedance self-matching ultra-narrow linewidth fiber resonator by use of a tunable π-phase-shifted FBG [PDF]
Scientific Reports, 2017 In this paper, we present a novel ultra-narrow linewidth fiber resonator formed by a tunable polarization maintaining (PM) π-phase-shifted fiber Bragg grating and a PM uniform fiber Bragg grating with a certain length of PM single mode fiber patch cable ...
Mingyong Jing +6 more
doaj +2 more sources
1.55 μm Narrow-Linewidth Pulsed Laser Based on MgO:PPLN
Photonics, 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.
Qing Ye, Kejian Yang, He Jingliang
exaly +3 more sources
Dual-cavity feedback assisted DFB narrow linewidth laser [PDF]
Scientific Reports, 2017 Single longitudinal mode (SLM) distributed feedback (DFB) lasers with a linewidth lower than a few kHz find applications in many coherent detection systems.
Shihong Huang +6 more
doaj +2 more sources
Micromachines, 2022 Delayed self-heterodyne/homodyne measurements based on an unbalanced interferometer are the most used methods for measuring the linewidth of narrow-linewidth lasers.
Zhongan Zhao +9 more
doaj +1 more source
High-Power, Narrow-Linewidth, Continuous-Wave, Thulium-Doped Fiber Laser Based on MOPA
Photonics, 2023 A high-power, narrow-linewidth, continuous-wave, thulium-doped fiber laser (TDFL) based on a master-oscillator power-amplifier (MOPA) was experimentally demonstrated.
Biao Guan +9 more
doaj +1 more source
Study on external cavity diode laser with a wide mode-hopping free tuning range
Frontiers in Physics, 2022 A wide mode-hopping free and narrow linewidth tunable laser diode source with a Littman-Metcalf arrangement based on a diffraction grating is presented. Several experiments are carried out to demonstrate the tuning characteristics and spectral linewidth ...
Aiguo Zhang +15 more
doaj +1 more source
IEEE Photonics Journal, 2020 Narrow-linewidth silicon-based lasersplay an important role in the field of silicon photonics. In this paper, we have proposed a high performance narrow-linewidth silicon-based Er silicate laser, based on strip-loaded DFB waveguide with a hybrid pump and
Peiqi Zhou, Xingjun Wang, Yandong He
doaj +1 more source
High-power single-frequency pulsed fiber MOPA via SPM suppression based on a triangular pulse
Results in Physics, 2021 In this work, we demonstrate a high-power single-frequency nanosecond fiber master oscillator power amplifier (MOPA) at 1 μm with near transform-limited narrow spectral linewidth.
Chaodu Shi +8 more
doaj +1 more source
Extending Timescales and Narrowing Linewidths in NMR
CHIMIA, 2011 Among the different fields of research in nuclear magnetic resonance (NMR) which are currently investigated in the Laboratory of Biomolecular Magnetic Resonance (LRMB), two subjects that are closely related to each other are presented in this article.
Segawa, Takuya F +11 more
openaire +7 more sources
Narrow-linewidth fiber laser operating at 155 μm [PDF]
Optics 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 +3 more sources