High power, high signal-to-noise ratio single-frequency 1μm Brillouin all-fiber laser

2016 ◽  
Author(s):  
Jing Wang ◽  
Yubin Hou ◽  
Qian Zhang ◽  
Dongchen Jin ◽  
Ruoyu Sun ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Signal To Noise Ratio ◽  
Single Frequency ◽  
High Signal ◽  
Signal To Noise ◽  
Noise Ratio

scholarly journals High-power, high signal-to-noise ratio single-frequency 1 μm Brillouin all-fiber laser

2015 ◽  
Vol 23 (22) ◽  
pp. 28978 ◽  
Author(s):  
Jing Wang ◽  
Yubin Hou ◽  
Qian Zhang ◽  
Dongchen Jin ◽  
Ruoyu Sun ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Signal To Noise Ratio ◽  
Single Frequency ◽  
High Signal ◽  
Signal To Noise ◽  
Noise Ratio

High power high signal-to-noise ratio multiwavelength Raman fiber laser based on random distributed feedback

2017 ◽  
Vol 56 (11) ◽  
pp. 110304 ◽  
Author(s):  
Hanshuo Wu ◽  
Jiaxin Song ◽  
Wei Liu ◽  
Jiangmin Xu ◽  
Hanwei Zhang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Signal To Noise Ratio ◽  
Distributed Feedback ◽  
High Signal ◽  
Signal To Noise ◽  
Raman Fiber Laser ◽  
Noise Ratio

High signal-to-noise ratio, single-frequency 2  μm Brillouin fiber laser

2014 ◽  
Vol 39 (9) ◽  
pp. 2626 ◽  
Author(s):  
Yongfeng Luo ◽  
Yulong Tang ◽  
Jianlong Yang ◽  
Yao Wang ◽  
Shiwei Wang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
Single Frequency ◽  
High Signal ◽  
Signal To Noise ◽  
Noise Ratio

scholarly journals HIGH SIGNAL-TO-NOISE RATIO Q-SWITCHING ERBIUM DOPED FIBER LASER PULSE EMISSION UTILIZING SINGLE LAYER TRIVIAL TRANSFER GRAPHENE FILM SATURABLE ABSORBER

2016 ◽  
Vol 78 (3) ◽  
Author(s):  
K. Y. Lau ◽  
A. A. Latif ◽  
M. H. Abu Bakar ◽  
M. A. Mahdi
Keyword(s):  
Laser Pulse ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Signal To Noise Ratio ◽  
Single Layer ◽  
High Signal ◽  
Signal To Noise ◽  
Pulse Emission ◽  
Erbium Doped ◽  
Noise Ratio

This paper presents the high signal-to-noise ratio (SNR) Q-switched erbium-doped fiber laser pulse emission using a commercial single layer graphene (SLG) film as a saturable absorber (SA). A sandwiched-type structure with transferred single layer SLG film between two fiber ferrules is formed to function as the SA. Q-switched pulse emission with repetition rate from 47.25 kHz to 67.39 kHz and round-trip time per oscillation from 7.42 µs to 10.36 µs are obtained from the laser cavity set-up. The SNR of 62.64 dB shows a good quality of pulse generation using the SLG film as SA. The effortless production of SLG is enabling factor to produce fast fabrication and low cost SA for application in Q-switched pulsed fiber lasers.  

scholarly journals Multi-longitudinal mode fiber laser sensor system with high signal-to-noise ratio based on laser modes control

2019 ◽  
Vol 27 (8) ◽  
pp. 11776 ◽  
Author(s):  
Yu Guo ◽  
Shangjing Liu ◽  
Yi Ni ◽  
Haodong Wu ◽  
Xiang Fei Chen
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
Longitudinal Mode ◽  
Sensor System ◽  
High Signal ◽  
Laser Sensor ◽  
Signal To Noise ◽  
Laser Modes ◽  
Noise Ratio

Narrow-frequency sharp-angular filters using all-dielectric cascaded meta-gratings

Nanophotonics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 3443-3450 ◽  
Author(s):  
Wei-Nan Liu ◽  
Rui Chen ◽  
Wei-Yi Shi ◽  
Ke-Bo Zeng ◽  
Fu-Li Zhao ◽  
...  
Keyword(s):  
Thin Film ◽  
Signal To Noise Ratio ◽  
Incident Angle ◽  
Design Strategy ◽  
Transmission Peak ◽  
High Signal ◽  
Waveguide Array ◽  
Signal To Noise ◽  
Center Wavelength ◽  
Noise Ratio

AbstractSelective transmission or filtering always responds to either frequency or incident angle, so as hardly to maximize signal-to-noise ratio in communication, detection and sensing. Here, we propose compact meta-filters of narrow-frequency sharp-angular transmission peak along with broad omnidirectional reflection sidebands, in all-dielectric cascaded subwavelength meta-gratings. The inherent collective resonance of waveguide-array modes and thin film approximation of meta-grating are employed as the design strategy. A unity transmission peak, locating at the incident angle of 44.4° and the center wavelength of 1550 nm, is demonstrated in a silicon meta-filter consisting of two-layer silicon rectangular meta-grating. These findings provide possibilities in cascaded meta-gratings spectroscopic design and alternative utilities for high signal-to-noise ratio applications in focus-free spatial filtering and anti-noise systems in telecommunications.

scholarly journals Low-dose, phase-contrast mammography with high signal-to-noise ratio

2016 ◽  
Vol 7 (2) ◽  
pp. 381 ◽  
Author(s):  
Lukas B. Gromann ◽  
Dirk Bequé ◽  
Kai Scherer ◽  
Konstantin Willer ◽  
Lorenz Birnbacher ◽  
...  
Keyword(s):  
Phase Contrast ◽  
Low Dose ◽  
Signal To Noise Ratio ◽  
High Signal ◽  
Signal To Noise ◽  
Noise Ratio
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