Results 21 to 30 of about 525,806 (272)

The Influence of Noise Floor on the Measurement of Laser Linewidth Using Short-Delay-Length Self-Heterodyne/Homodyne Techniques

open access: yesMicromachines, 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

open access: yesPhotonics, 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

open access: yesFrontiers 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

Cost efficient narrow linewidth laser transmitter for coherent detection [PDF]

open access: yes, 2008
Authors present a cost efficient narrow linewidth laser transmitter for future coherent detection systems. The spectral purity of the laser allows the phase modulation of data signals at bit rates as low as 155 Mb ...
Kelly, Brian   +9 more
core   +3 more sources

A Sub-kHz Narrow-Linewidth, and Hundred-mW High-Output-Power Silicon-Based Er Silicate Laser With Hybrid Pump and Signal Co-Resonant Cavity

open access: yesIEEE 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

open access: yesResults 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

Discrete mode laser diodes with ultra narrow linewidth emission <3kHz [PDF]

open access: yes, 2008
Ex-facet, free-running ultra-low linewidth (
Kelly, Brian   +28 more
core   +2 more sources

Frequency Noise Characterization of Narrow-Linewidth Lasers: A Bayesian Approach

open access: yes, 2023
We describe a Bayesian estimation approach to infer on the frequency noise characteristics of narrow-linewidth semiconductor lasers from delayed self-heterodyne beat note measurements.
Mertenskötter, Lutz, Kantner, Markus
core   +1 more source

Extending Timescales and Narrowing Linewidths in NMR

open access: yesCHIMIA, 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

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