302 W triple-frequency, single-mode, linearly polarized Yb-doped all-fiber amplifier

Stimulated Brillouin scattering (SBS) effect is currently the major limitation for the power scaling of single-frequency/narrow linewidth fiber laser systems. A single-mode linearly polarized all-fiber amplifier system is set up to investigate SBS effect in triple-frequency high-power amplifiers. With this amplifier, up to 302 W output power with 83% slope efficiency is achieved and the SBS threshold is scaled up to 12 dB. To the best of our knowledge, this is the highest output power of multifrequency laser from a single-mode polarization maintaining fiber. Good spectral properties and high brightness make this laser source available for the application of second harmonic generation, coherent beam combining.

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Stimulated Brillouin Scattering in Single-Frequency, Single-Mode, Linearly Polarized Ytterbium-Doped Fiber Amplifier

Chinese Journal of Lasers ◽

10.3788/cjl201138.0502001 ◽

2011 ◽

Vol 38 (5) ◽

pp. 0502001

Author(s):

刘驰 Liu Chi ◽

冷进勇 Leng Jinyong ◽

漆云凤 Qi Yunfeng ◽

周军 Zhou Jun ◽

丁亚茜 Ding Yaqian ◽

...

Keyword(s):

Brillouin Scattering ◽

Stimulated Brillouin Scattering ◽

Single Mode ◽

Fiber Amplifier ◽

Single Frequency ◽

Linearly Polarized ◽

Stimulated Brillouin

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170 W, single-frequency, single-mode, linearly-polarized, Yb-doped all-fiber amplifier

Optics Express ◽

10.1364/oe.21.005456 ◽

2013 ◽

Vol 21 (5) ◽

pp. 5456 ◽

Cited By ~ 73

Author(s):

Lei Zhang ◽

Shuzhen Cui ◽

Chi Liu ◽

Jun Zhou ◽

Yan Feng

Keyword(s):

Single Mode ◽

Fiber Amplifier ◽

Single Frequency ◽

Linearly Polarized

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51.5 W monolithic single frequency 1.97 m Tm-doped fiber amplifier

High Power Laser Science and Engineering ◽

10.1017/hpl.2013.20 ◽

2013 ◽

Vol 1 (3-4) ◽

pp. 123-125 ◽

Cited By ~ 25

Author(s):

Xiong Wang ◽

Pu Zhou ◽

Xiaolin Wang ◽

Hu Xiao ◽

Lei Si

Keyword(s):

Pump Power ◽

Fiber Laser ◽

Output Power ◽

Power Amplifier ◽

Conversion Efficiency ◽

Brillouin Scattering ◽

Fiber Amplifier ◽

Single Frequency ◽

Optical Conversion Efficiency ◽

Stimulated Brillouin

AbstractWe demonstrate a monolithic single frequency Tm-doped fiber amplifier with output power of 51.5 W. A single frequency fiber laser at 1.97 $\mathrm {\mu} $m is amplified by a cascaded master oscillator power amplifier (MOPA) system with all-fiber configuration. The optical-to-optical conversion efficiency of the main fiber amplifier is 45%. No amplified spontaneous emission (ASE) or stimulated Brillouin scattering (SBS) effect is observed in the fiber amplifier. The output power could be further scaled by launching more pump power.

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A High Speed and Ultra Long-Haul Radio-Over-Fiber System Employing Dual Photoelectric Arms Coherent Modulation and Optical Duo-Binary Coding

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.988.544 ◽

2014 ◽

Vol 988 ◽

pp. 544-547

Author(s):

Guang Li

Keyword(s):

High Speed ◽

Continuous Wave ◽

Single Mode ◽

Fiber Amplifier ◽

Radio Over Fiber ◽

Laser Source ◽

Signal Spectrum ◽

Fiber System ◽

Binary Coding ◽

Coherent Modulation

A novel high speed and ultra long-haul radio-over-fiber (ROF) system based on Dual Photoelectric Arms Coherent Modulation (DPACM) and Optical Duo-Binary Coding (ODBC) is proposed, and demonstrated. The signal spectrum bandwidth, generated by ODBC based on the first order DPACM, is half of non-return-to-zero (NRZ ) signal spectrum bandwidth. The secondary order DPACM generates a 40-GHz Millimeter-wave (mm-wave) that is transmitted over fiber (ROF). The simulation results show that, the bit rate can be up to 40 Gbps and the transmission distance is over 1500 Km, based on the ROF system with a 0 dBm continuous-wave laser source, multiple stages Er-Doped Fiber Amplifier (EDFA), a standard single mode fiber (SSMF) with a dispersion of 17 ps/nm/Km and a attenuation of 0.2 dB/Km.

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