OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 4 — Feb. 15, 2007
  • pp: 367–369

Quasi-common-path laser feedback interferometry based on frequency shifting and multiplexing

Xinjun Wan, Duo Li, and Shulian Zhang  »View Author Affiliations


Optics Letters, Vol. 32, Issue 4, pp. 367-369 (2007)
http://dx.doi.org/10.1364/OL.32.000367


View Full Text Article

Enhanced HTML    Acrobat PDF (427 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We present a quasi-common-path laser feedback interferometer based on frequency shifting and multiplexing. The interferometer uses two acousto-optic modulators to shift the frequency of the target-generated feedback light by 2 Ω . A properly aligned mirror is inserted into the feedback path to generate a feedback light frequency shifted by Ω. Phase variations of the two quasi-common-path feedback light beams are simultaneously measured through heterodyne demodulation with two different reference signals. Their subtraction accurately reflects the target displacement. Under typical room conditions, the system’s short-period resolution is better than 2 nm , and its 3 min displacement accuracy is 8 nm .

© 2007 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(230.1040) Optical devices : Acousto-optical devices

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: September 15, 2006
Revised Manuscript: November 8, 2006
Manuscript Accepted: November 9, 2006
Published: January 26, 2007

Citation
Xinjun Wan, Duo Li, and Shulian Zhang, "Quasi-common-path laser feedback interferometry based on frequency shifting and multiplexing," Opt. Lett. 32, 367-369 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-4-367

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

If you are accessing the full text through a member bundle, please use the Enhanced HTML link to gain access to the citation lists and other restricted features. Note that accessing both the PDF and HTML versions of an article will count as only one download against your account.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

If you are accessing the full text through a member bundle, please use the Enhanced HTML link to gain access to the citation lists and other restricted features. Note that accessing both the PDF and HTML versions of an article will count as only one download against your account.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

If you wish to use one of your free member downloads to view the figures, click "Enhanced HTML" above and access the figures from the article itself or from the navigation tab.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

If you are accessing the full text through a member bundle, please use the Enhanced HTML link to gain access to the citation lists and other restricted features. Note that accessing both the PDF and HTML versions of an article will count as only one download against your account.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited