OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 14, Iss. 20 — Oct. 15, 1989
  • pp: 1152–1154

Sagnac interferometer for underwater sound detection: noise properties

Kjell Kråkenes and Kjell Bløtekjaer  »View Author Affiliations


Optics Letters, Vol. 14, Issue 20, pp. 1152-1154 (1989)
http://dx.doi.org/10.1364/OL.14.001152


View Full Text Article

Enhanced HTML    Acrobat PDF (383 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The use of a Sagnac interferometer as an acoustic sensor is discussed. Compared with a Mach–Zehnder interferometer it has the advantage of zero path-length difference. The sensitivity for low frequencies is shown to be proportional to frequency. With a passive homodyne-detection scheme using a 3 × 3 directional coupler, we report a noise-equivalent phase shift of 2 . 5 × 10 7 rad / Hz at 10 kHz. The detectivity is believed to be limited by backscattered light.

© 1989 Optical Society of America

History
Original Manuscript: January 23, 1989
Manuscript Accepted: July 14, 1989
Published: October 15, 1989

Citation
Kjell Kråkenes and Kjell Bløtekjaer, "Sagnac interferometer for underwater sound detection: noise properties," Opt. Lett. 14, 1152-1154 (1989)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-14-20-1152


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. E. Udd, Proc. Soc. Photo-Opt. Instrum. Eng. 425, 90 (1983).
  2. R. G. Priest, IEEE Trans. Microwave Theory Tech. MTT-30, 1589 (1982). [CrossRef]
  3. T. H. Wood, R. A. Linke, B. L. Kasper, E. C. Carr, IEEE J. Lightwave Technol. 6, 346 (1988). [CrossRef]
  4. B. Moslehi, IEEE J. Lightwave Technol. LT-4, 1704 (1986). [CrossRef]
  5. K. Takada, J. Opt. Soc. Am. A 2, 872 (1985). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited