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Journal of Optical Technology

Journal of Optical Technology

| SIMULTANEOUS RUSSIAN-ENGLISH PUBLICATION

  • Vol. 75, Iss. 9 — Sep. 1, 2008
  • pp: 574–577

Mach-Zehnder fiber interferometer for measuring the spectral characteristics of single-frequency semiconductor lasers of the 1.32-μm and 1.55-μm range

S. A. Bulgakova and A. L. Dmitriev  »View Author Affiliations


Journal of Optical Technology, Vol. 75, Issue 9, pp. 574-577 (2008)
http://dx.doi.org/10.1364/JOT.75.000574


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Abstract

This paper describes the design of a Mach-Zehnder fiber interferometer based on a single-mode optical fiber with a path difference from 2mto10.3km. The phase modulator of the interferometer is made in the form of a coil of fiber on a metallic cylinder, in which acoustic vibrations are excited a piezoelectric converter. The results of interferometric studies are presented for commercial single-frequency semiconductor lasers with fiber Bragg gratings (FBGs) of the 1.32 and 1.55-μm range. It is shown that the short-term line width (a few seconds to a few tens of seconds) of the spectrum of semiconductor lasers with fiber Bragg reflectors is less than 20kHz; in this case, such lasers are not strictly single-frequency lasers and based at several (two or more) closely spaced spectral lines.

© 2008 Optical Society of America

Citation
S. A. Bulgakova and A. L. Dmitriev, "Mach-Zehnder fiber interferometer for measuring the spectral characteristics of single-frequency semiconductor lasers of the 1.32-μm and 1.55-μm range," J. Opt. Technol. 75, 574-577 (2008)
http://www.opticsinfobase.org/jot/abstract.cfm?URI=jot-75-9-574

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