Journal ArticleDOI
400 mW ultrashort cavity low-noise single-frequency Yb^3+-doped phosphate fiber laser
Shanhui Xu,Zhongmin Yang,Weinan N. Zhang,Xiaoming Wei,Qi Qian,Dongdan D. Chen,Qinyuan Y. Zhang,Shaoxiong X. Shen,Mingying Y. Peng,Jianrong R. Qiu +9 more
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TLDR
A compact, low-noise, single-frequency fiber laser by using a newly developed Yb³⁺ heavily doped single-mode phosphate glass fiber has been demonstrated.Abstract:
A compact, low-noise, single-frequency fiber laser by using a newly developed Yb³⁺ heavily doped single-mode phosphate glass fiber has been demonstrated Over 400 mW stable continuous wave single transverse and longitudinal mode laser at 106 μm was achieved from a 08 cm long active fiber The measured slope efficiency and estimated quantum efficiency of laser emission are 727% and 93%, respectively The signal-to-noise ratio is higher than 72 dB, and the linewidth of the fiber laser is less than 7 kHz, while the measured relative intensity noise is less than -130 dB/Hz at frequencies of over 15 MHzread more
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Recent advances in soft optical glass fiber and fiber lasers
TL;DR: In this article, the basic requirements for the rare-earth (RE) ions and host matrix material for obtaining efficient NIR-MIR laser output, a review of the background of processing fundamentals on the fabrication and characterization for newly developed soft optical glass fibers, an outline of the key issues of platinum removal and the dehydration technique, effective doping of RE, and low splicing loss together with the recent theoretical and experimental results.
Journal ArticleDOI
Review of recent progress on single-frequency fiber lasers [Invited]
Shijie Fu,Wei Shi,Yan Feng,Lei Zhang,Zhongmin Yang,Shanhui Xu,Xiushan Zhu,Robert A. Norwood,N. Peyghambarian +8 more
TL;DR: In this article, the recent advances of single-frequency fiber oscillators and amplifiers are briefly reviewed in the broad wavelength region of 1-3 μm. And the solution to achieving higher power/energy is also discussed, accompanied by the start-of-the-art results achieved to date.
Journal ArticleDOI
1.89 kW all-fiberized and polarization-maintained amplifiers with narrow linewidth and near-diffraction-limited beam quality.
TL;DR: This is the first demonstration of all-fiberized amplifiers with narrow linewidth, near linear polarization, and near-diffraction-limited beam quality at 2 kW power-level and both the polarization extinction ratio and beam quality are maintained well during the power scaling process.
Journal ArticleDOI
3 GHz, fundamentally mode-locked, femtosecond Yb-fiber laser.
TL;DR: A fundamentally mode-locked Yb-fiber laser with 3 GHz repetition rate and ∼206 fs pulse duration and a high-dispersion output coupler to manage cavity dispersion is demonstrated.
Journal ArticleDOI
414 W near-diffraction-limited all-fiberized single-frequency polarization-maintained fiber amplifier.
TL;DR: This is the highest output power of single-frequency polarization-maintained fiber amplifier based on an all-fiber structure and the slope efficiency of the main amplifier is about 80%.
References
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LIGO: The Laser Interferometer Gravitational-Wave Observatory
TL;DR: Laser Interferometric Gravitational-Wave Observatory (LIGO) as discussed by the authors is a project to detect and study gravitational waves of astrophysical origin, which holds the promise of testing general relativity in the strong-field regime, providing a new probe of exotic objects such as black hole and neutron stars, and uncovering unanticipated new astrophysics.
Journal ArticleDOI
LIGO: The laser interferometer gravitational-wave observatory
TL;DR: LIGO as discussed by the authors is a trio of extremely sensitive Michelson interferometers built to detect gravitational waves from space, and the results of their recent observations are described in detail.
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Progress in lunar laser ranging tests of relativistic gravity.
TL;DR: In this article, a strong equivalence principle (SEP) test was given for the relativistic gravity of the Moon using a laser range to the Moon. But the result was not applicable to the solar system.
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An efficient compact 300 mW narrow-linewidth single frequency fiber laser at 1.5 microm.
TL;DR: An efficient single frequency fiber laser by using a newly-developed Er(3+)/Yb(3+) co-doped single mode phosphate glass fiber with the net gain coefficient of 5.2 dB/cm and propagation loss coefficient has been demonstrated.
Journal ArticleDOI
Coherent beam combination of 1.08 kW fiber amplifier array using single frequency dithering technique.
Yanxing Ma,Xiaolin Wang,Jinyong Leng,Hu Xiao,Xiaolin Dong,Jiajian Zhu,Wenbo Du,Pu Zhou,Xiaojun Xu,Lei Si,Zejin Liu,Yijun Zhao +11 more
TL;DR: Coherent beam combination of a 1.08 kW fiber amplifier array has been demonstrated for the first time and the fringe contrast of the far-field intensity pattern is improved to more than 85%, and the residual phase error is less than λ/15.