Results 41 to 50 of about 882,801 (311)

Multiwatts narrow linewidth fiber Raman amplifiers

open access: yesOptics Express, 2008
Up to 4.8 W, approximately 10 MHz, 1178 nm laser is obtained by Raman amplification of a distributed feedback diode laser in standard single mode fibers pumped by an 1120 nm Yb fiber laser. More than 10% efficiency and 27 dB amplification is achieved, limited by onset of stimulated Brillouin scattering.
Yan, Feng   +2 more
openaire   +2 more sources

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

High-Power High Beam Quality Narrow-Linewidth Quasicontinuous Wave Microsecond Pulse 1064-nm Nd:YAG Amplifier

open access: yesIEEE Photonics Journal, 2016
We demonstrated a high average power, high beam quality, narrow linewidth, quasicontinuous wave (QCW) diode-pumped 1064-nm Nd:YAG amplifier. A narrow-linewidth QCW pulse Nd:YAG oscillator was employed as the seed laser, providing a maximum average power ...
Chuan Guo   +12 more
doaj   +1 more source

A Linearly Polarized Wavelength-Tunable Q-Switched Fiber Laser with a Narrow Spectral Bandwidth of 112 MHz

open access: yesSensors, 2023
A tunable and narrow-bandwidth Q-switched ytterbium-doped fiber (YDF) laser is investigated in this paper. The non-pumped YDF acts as a saturable absorber and, together with a Sagnac loop mirror, provides a dynamic spectral-filtering grating to achieve a
Chengjie Zhu   +9 more
doaj   +1 more source

Classical demonstration of frequency dependent noise ellipse rotation using Optomechanically Induced Transparency

open access: yes, 2014
Cavities with extremely narrow linewidth of 10-100 Hz are required for realizing frequency dependent squeezing to enable gravitational wave detectors to surpass the free mass standard quantum limit over a broad frequency range.
Blair, David G.   +5 more
core   +1 more source

Linewidth of single photon transitions in Mn$_{12}$-acetate

open access: yes, 2001
We use time-domain terahertz spectroscopy to measure the position and linewidth of single photon transitions in Mn$_{12}$-acetate. This linewidth is compared to the linewidth measured in tunneling experiments.
A. Fort   +26 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

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

Frequency-tunable Optoelectronic Oscillator With Synchronized Dual-Wavelength Narrow-Linewidth Laser Output

open access: yesIEEE Access, 2018
Synchronized dual-wavelength narrow-linewidth lasers and a wideband frequency-tunable optoelectronic oscillator are simultaneously realized using mutual-injection-locked distributed feedback (DFB) lasers.
Guangcan Chen   +6 more
doaj   +1 more source

Generation of Narrow-Band Polarization-Entangled Photon Pairs for Atomic Quantum Memories

open access: yes, 2008
We report an experimental realization of a narrow-band polarization-entangled photon source with a linewidth of 9.6 MHz through cavity-enhanced spontaneous parametric down-conversion.
Bao, Xiao-Hui   +6 more
core   +1 more source

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