
Proceedings Paper
Nanosecond pulse passively Q-switched Yb-doped fiber laser with Cr4+: YAG as saturable absorberFormat | Member Price | Non-Member Price |
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Paper Abstract
We report a passively Q-switched Yb-doped fiber laser with Cr4+:YAG saturable absorber and get stable
nanosecond pulse trains. Three kinds of laser cavity configurations, including a cladding-pumped ring cavity, a
cladding-pumped linear cavity and a core-pumped linear cavity were studied, and they all can effectively restrain
the generation of Stimulated Brillouin scattering and the generation of self-pulse. Cladding-pumped ring-avity
fiber laser with Cr4+:YAG as saturable absorber inside is established for the first time to obtain stable 1 μs pulse
trains. The amplitude fluctuation and timing jitter are below 5% (rms). Further more, we can also get stable pulse
trains by using a high reflective fiber Bragging grating as a resonator mirror in a cladding-pumped linear cavity
and a core-pumped linear cavity fiber laser respectively. In the cladding-pumped linear cavity fiber laser, the
tunable pulse repetition rate is from 9.1 kHz to 30.3 kHz and the minimum pulse duration is 156 ns. And in the
core-pumped linear cavity fiber laser, the tunable pulse repetition rate is from 15 kHz to 33 kHz and the minimum
pulse duration is 24 ns which much less than those reported before. Although the average output power is only
hundreds milli-Watts now, the laser uses a fiber coupler as the output of pulse trains, it is convinient to boost the
power with a stage of fiber amplifier. This kind of pulse laser can be used as a seed source, and amplified to tens of
Watts for practical applications in the future.
Paper Details
Date Published: 22 August 2011
PDF: 7 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81924L (22 August 2011); doi: 10.1117/12.903657
Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)
PDF: 7 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81924L (22 August 2011); doi: 10.1117/12.903657
Show Author Affiliations
Jia Liu, Beijing Univ. of Technology (China)
Jiang Liu, Beijing Univ. of Technology (China)
Jiang Liu, Beijing Univ. of Technology (China)
Pu Wang, Beijing Univ. of Technology (China)
Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)
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