Results 51 to 60 of about 1,804,643 (357)

Fiber modulators and fiber amplifiers for LISA

open access: yesJournal of Physics: Conference Series, 2010
We present the sideband phase characteristics of a fiber-coupled integrated electro-optical modulator (EOM) at a modulation frequency of 2 GHz for Fourier frequencies from 0.1 mHz to 1 Hz. The upper phase noise limit was almost an order of magnitude better than required for LISA. The EOM's phase dependencies on temperature and transmitted optical power
Tröbs, Michael   +8 more
openaire   +1 more source

Fiber optical amplifiers [PDF]

open access: yesOptical Fiber Communication, 1990
Outline:Advantages of erbium-doped fibre amplifiers (EDFA)Fabrication of rare-earth-doped fibresAmplifier fundamentalsSpectroscopy of erbiumPump requirementsAmplifier gain and saturationInterchannel crosstalkNoiseSystem ...
Payne, D.N., Laming, R.I.
openaire   +2 more sources

Cladding-pumped Raman fiber with a W-type core designed for power scaling

open access: yes, 2009
We design a cladding-pumped fiber Raman amplifier with a wavelength-filtering W-type core for the suppression of the 2nd-order Raman Stokes.
J. Ji   +5 more
core   +1 more source

High power fiber sources: more than kilowatts [PDF]

open access: yes, 2007
Fiber lasers and amplifiers have reached several kilowatts of output power, and offer many attractions beyond raw power. This tutorial discusses basic scientific and practical issues of fiber sources, and advantages and limitations that derive from ...
Nilsson, J., Johan Nilsson
core   +1 more source

Single-frequency fiber amplifier at 1.5 µm with 100 W in the linearly-polarized TEM00 mode for next-generation gravitational wave detectors.

open access: yesOptics Express, 2017
Next-generation gravitational wave detectors require single-frequency and high power lasers at a wavelength of 1.5 µm addressing a set of demanding requirements such as linearly-polarized TEM00 radiation with low noise to run for long periods.
O. de Varona   +7 more
semanticscholar   +1 more source

Transformation From Conventional Dissipative Solitons to Amplifier Similaritons in All-Normal Dispersion Mode-Locked Fiber Lasers

open access: yesIEEE Photonics Journal, 2018
We report the numerical demonstration of the transformation from dissipative solitons to amplifier similaritons in an all-normal dispersion ultrafast fiber laser for the first time.
Yueqing Du, Xuewen Shu
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Photonic lantern kW-class fiber amplifier.

open access: yesOptics Express, 2017
Pump-limited kW-class operation in a multimode fiber amplifier using adaptive mode control and a photonic lantern front end was achieved. An array of three single-mode fiber inputs was used to adaptively inject the appropriate superposition of input ...
J. Montoya   +5 more
semanticscholar   +1 more source

Widely Tunable Pulse Duration 100 mJ Single-Mode MOPA System Based on Yb-Doped Tapered Double-Clad Fiber and Nd:YAG Solid-State Amplifiers

open access: yesPhotonics
We report on a 1064 nm master oscillator power amplifier (MOPA) system based on pulse-modulated laser diode seed sources combined with fiber preamplifiers and a Yb-doped tapered double-clad fiber (T-DCF) amplifier used as an all-fiber master oscillator ...
Mikhail Kozlyakov   +2 more
doaj   +1 more source

Dynamics of soliton cascades in fiber amplifiers

open access: yesOptics Letters, 2016
We study numerically the formation of cascading solitons when femtosecond optical pulses are launched into a fiber amplifier with less energy than required to form a soliton of equal duration. As the pulse is amplified, cascaded fundamental solitons are created at different distances, without soliton fission, as each fundamental soliton moves outside ...
Arteaga-Sierra, F. R.   +2 more
openaire   +3 more sources

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