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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 22, Iss. 5 — Mar. 1, 1997
  • pp: 328–330

Longitudinal-mode-partition noise in a semiconductor-laser-based interferometer

Shuichiro Inoue and Yoshihisa Yamamoto  »View Author Affiliations


Optics Letters, Vol. 22, Issue 5, pp. 328-330 (1997)
http://dx.doi.org/10.1364/OL.22.000328


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Abstract

We observed a periodic intensity-noise variation in the output of a Mach–Zehnder interferometer as we changed the arm-length difference in the range of several millimeters. We found that the period of the variation coincided with that expected for the longitudinal-mode separation of the semiconductor laser. The origin of the huge excess noise of a bright fringe (approximately 30 dB above the shot-noise level) was the longitudinal-mode-partition noise that was due to the selective destructive interference of side modes.

© 1997 Optical Society of America

Citation
Shuichiro Inoue and Yoshihisa Yamamoto, "Longitudinal-mode-partition noise in a semiconductor-laser-based interferometer," Opt. Lett. 22, 328-330 (1997)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-22-5-328

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