All-Fiber-Integrated High-Power Supercontinuum Sources Based on Multi-Core Photonic Crystal Fibers

The obstacles of power scaling the supercontinuum (SC) source based on single-core photonic crystal fiber (PCF) are analyzed. The combination of high-power fiber lasers and multi-core PCFs would be a feasible method to obtain an all-fiber-integrated high-power broadband SC source (covering visible r...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2014-09, Vol.20 (5), p.64-71
Main Authors: Chen, Hongwei, Wei, Huifeng, Liu, Tong, Zhou, Xuanfeng, Yan, Peiguang, Chen, Zilun, Chen, Shengping, Li, Jinyan, Hou, Jing, Lu, Qisheng
Format: Article
Language:English
Subjects:
Broadband
Crystal fibers
Dispersions
Fiber laser
Fiber lasers
fiber nonlinear optics
Laser excitation
multi-core photonic crystal fiber
Optical fiber amplifiers
Optical fiber dispersion
optical fibers
Photonic crystals
Pulse repetition rate
Pump lasers
Pumps
Spectra
supercontinuum generation
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Summary:The obstacles of power scaling the supercontinuum (SC) source based on single-core photonic crystal fiber (PCF) are analyzed. The combination of high-power fiber lasers and multi-core PCFs would be a feasible method to obtain an all-fiber-integrated high-power broadband SC source (covering visible range). In this paper, we present a comprehensive study of high-power SC generation in multi-core PCFs. Comparative experiments are performed by using a high-power pulse-repetition-rate-tunable picosecond fiber laser to pump two kinds of home-made seven-core PCFs. The influences of PCF structure (fiber dispersion property) and pulse repetition rate (pulse peak power) on the SC generation in multi-core PCFs are investigated in detail. When the picosecond fiber laser at a pulse repetition rate of 1.9 GHz is adopted as the pump, 116 W SC spanning from 800 to 1700 nm is generated in 1# seven-core PCF. Also 64 W visible SC spanning at least 500-1700 nm is demonstrated in 2# seven-core PCF at a pump pulse repetition rate of 480 MHz. The potential of extending the spectral range and scaling the output power for the SC source based on multi-core PCFs are analyzed and discussed.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2014.2304136