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Optical Engineering

Passive harmonically mode-locked fiber ring laser with long single-mode fiber and its application for high-resolution measurement of fiber length
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Paper Abstract

Passive harmonically mode-locked fiber ring laser with long single-mode fiber (SMF) has been demonstrated. With the increase of nonlinearity due to the incorporation of a long SMF, it is found that the laser can operate in harmonic mode-locking states with various repetition rates. Furthermore, based on the passively mode-locked fiber ring laser, a novel and simple technique for fiber length measurement with resolution on the order of centimeters has been proposed. The fiber length can be easily obtained from the fundamental cavity frequency of the mode-locked fiber laser because the transit time in a laser cavity is exactly proportional to the cavity length.

Paper Details

Date Published: 1 August 2009
PDF: 4 pages
Opt. Eng. 48(8) 084201 doi: 10.1117/1.3192787
Published in: Optical Engineering Volume 48, Issue 8
Show Author Affiliations
Zuxing Zhang, Beijing Univ. of Posts and Telecommunications (China)
Jian Wu, Beijing Univ. of Posts and Telecommunications (China)
Kun Xu, Beijing Univ. of Posts and Telecommunications (China)
Xiaobing Hong, Beijing Univ. of Posts and Telecommunications (China)
Jintong Lin, Beijing Univ. of Posts and Telecommunications (China)


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