Results 31 to 40 of about 36,081 (260)

Narrow-Linewidth 852-nm DBR-LD with Self-Injection Lock Based on High-Finesse Optical Cavity Filtering

open access: yesPhotonics, 2023
Narrow-linewidth lasers have a high spectral purity, long coherent length, and low phase noise, so they have important applications in atomic clocks, precision measurement, and quantum computing. We inject a transmitted laser from a narrow-linewidth (∼15
Lili Hao   +4 more
doaj   +1 more source

Self-quenching of the semiconductor laser linewidth below the Schawlow-Townes limit by using optical feedback [PDF]

open access: yes, 1992
We demonstrate theoretically and experimentally self-quenching of the fundamental semiconductor laser frequency fluctuations to a level that is orders of magnitude below the Schawlow-Townes limit for a solitary laser.
Ianelli, J.   +3 more
core   +1 more source

Nanosecond channel-switching exact optical frequency synthesizer using an optical injection phase-locked loop (OIPLL) [PDF]

open access: yes, 2004
Experimental results are reported on an optical frequency synthesizer for use in dynamic dense wavelength-division-multiplexing networks, based on a tuneable laser in an optical injection phase-locked loop for rapid wavelength locking.
Bayvel, P   +6 more
core   +1 more source

2.58 kW Narrow Linewidth Fiber Laser Based on a Compact Structure with a Chirped and Tilted Fiber Bragg Grating for Raman Suppression

open access: yesPhotonics, 2021
We report a high power, narrow linewidth fiber laser based on oscillator one-stage power amplification configuration. A fiber oscillator with a center wavelength of 1080 nm is used as the seed, which is based on a high reflection fiber Bragg grating (FBG)
Xin Tian   +6 more
doaj   +1 more source

Vibration-tolerant narrow-linewidth semiconductor disk laser using novel frequency-stabilisation schemes [PDF]

open access: yes, 2018
This paper will present developments in narrow-linewidth semiconductor-disk-laser systems using novel frequency-stabilisation schemes for reduced sensitivity to mechanical vibrations, a critical requirement for mobile applications.
Hunter, Craig R.   +5 more
core   +1 more source

Narrow-Linewidth Semiconductor Laser with Hybrid Feedback

open access: yesPhotonics
Narrow-linewidth semiconductor lasers have become indispensable devices in high-precision measurement and detection. Among various available technologies, self-injection locking plays a crucial role due to its significant ability to reduce linewidth and ...
Mingyuan Xue   +6 more
doaj   +1 more source

A Compact Self-Injection-Locked Narrow-Linewidth Diode Laser with Narrowband Dielectric Filter

open access: yesApplied Sciences, 2023
The self-injection-locked diode laser can significantly reduce the linewidth down to a sub-100 kHz level but requires optical filtering that is much narrower than the laser cavity linewidth.
Pengfei Fan   +5 more
doaj   +1 more source

Linewidth characteristics of un-cooled fiber grating Fabry–Perot laser controlled by the external optical feedback [PDF]

open access: yes, 2013
The effect of external optical feedback (OFB) on the linewidth characteristics of un-cooled laser module is theoretically investigated. This laser that consists of a Fabry–Perot (FP) laser diode and fiber Bragg grating (FBG) realizes stable operation and
Abas, Ahmad Fauzi   +3 more
core   +1 more source

Longitudinal modes in a high-gain laser [PDF]

open access: yes, 1970
In lasers employing high-gain narrow-linewidth transitions the theory predicts major departures of the mode-splitting frequencies from their low-gain values as well as a new type of mode splitting.
Amnon Yariv   +3 more
core   +2 more sources

Low-noise Brillouin laser on a chip at 1064 nm [PDF]

open access: yes, 2014
We demonstrate narrow-linewidth-stimulated Brillouin lasers at 1064 nm from ultra-high-Q silica wedge disk resonators on silicon. Fundamental Schawlow–Townes frequency noise of the laser is on the order of 0.1  Hz^2/Hz.
Lee, Hansuek   +2 more
core   +1 more source

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