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Generation of 1.2‐nJ pulses with 19.4‐nm rectangle‐shaped spectrum from erbium fiber laser without using dispersion compensation
Author(s) -
Zhao Deshuang,
Liu Yongzhi,
Wang Bingzhong,
Dai Jizhi,
Huang Xiujiang,
Zhang Changming
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21139
Subject(s) - fiber laser , materials science , optics , dispersion (optics) , microwave , laser , amplifier , erbium , rectangle , fiber , ring laser , optoelectronics , physics , mathematics , geometry , cmos , quantum mechanics , composite material
By combining a lumped amplifier and a coupler with high output ratio, we present a passively mode‐locked Er 3+ ‐doped fiber laser with ring cavity, which directly produces 1.2‐nJ pulses with a rectangle‐shaped spectrum of 19.4 nm. To our knowledge, they are the highest pulse‐energy and broadest spectral width obtained directly from Er 3+ ‐doped fiber lasers without using the dispersion‐compensation technique. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 254–256, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21139