Presentation 2001/8/17
A frequency-shifted feedback fiber laser and its application to optical measurements
M. Yoshida, M. Nakazawa, H. Ito,
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Abstract(in English) In frequency-shifted feedback lasers (FSF lasers), a frequency shift is imposed on an intracavity light field by feedback of the first-order diffracted light of an acousto-optic modulator. In this report, we describe the performance of the FSF laser with an erbium-doped fiber as a gain medium and its application to measurements for group velocity dispersion and polarization mode dispersion of optical fibers. We also describe a new FSF laser which incorporates an active mode-locking technique. Because of the mode-locking mechanism, the phase between the modes are completely locked, and this indicates that one can greatly improve the signal to noise ratio of the beat signal(>20 dB)in optical homodyne measurements.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Frequency-shifted feedback laser / erbium-doped fiber laser / frequency-chirped light / dispersion measurements / mode-locking technique
Paper # EMD2001-42,CPM2001-68,OPE2001-61,LQE2001-60
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Conference Information
Committee EMD
Conference Date 2001/8/17(1days)
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Registration To Electromechanical Devices (EMD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A frequency-shifted feedback fiber laser and its application to optical measurements
Sub Title (in English)
Keyword(1) Frequency-shifted feedback laser
Keyword(2) erbium-doped fiber laser
Keyword(3) frequency-chirped light
Keyword(4) dispersion measurements
Keyword(5) mode-locking technique
1st Author's Name M. Yoshida
1st Author's Affiliation Research Institute of Electrical Communication, Tohoku University()
2nd Author's Name M. Nakazawa
2nd Author's Affiliation Research Institute of Electrical Communication, Tohoku University
3rd Author's Name H. Ito
3rd Author's Affiliation Research Institute of Electrical Communication, Tohoku University
Date 2001/8/17
Paper # EMD2001-42,CPM2001-68,OPE2001-61,LQE2001-60
Volume (vol) vol.101
Number (no) 256
Page pp.pp.-
#Pages 6
Date of Issue