NDLI: Investigation on Power Scalability of Diffraction-Limited Yb-Doped Fiber Lasers

Content Provider	IEEE Xplore Digital Library
Author	Jianqiu Cao Shaofeng Guo Xiaojun Xu Jinbao Chen Qisheng Lu
Copyright Year	1995
Abstract	The power scalability of diffraction-limited Yb-doped fiber lasers is investigated with a new model which takes into consideration the spectrums of absorption and emission cross sections of active ions. It is found that the maximum output power of a fiber laser is not only dependent on the pump wavelength, but also depends on the core size and cladding-to-core area ratio of active fiber. To increase the pump wavelength is not sufficient to improve the maximum output power, where at the same time the large core, small cladding, high pump brightness and dopant concentration are simultaneously required. Further investigations show that to maximize the output power, the best choice of pump wavelength is highly dependent on parameters such as the pump brightness, dopant concentration, core size and cladding-to-core area ratio. It is found that the pump wavelength with the largest absorption cross section should be the best choice when the core size is small. Besides, the upper limitation of pump brightness for elevating the output power of fiber lasers is given.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	373
Ending Page	383
Page Count	11
File Size	569044
File Format	PDF
ISSN	1077260X
Volume Number	20
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser excitation Fiber lasers Pump lasers Power lasers Optical fiber amplifiers Laser modes Laser theory ytterbium Optical fiber lasers optical fiber amplifiers
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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