OSA's Digital Library

Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 14 — Jul. 15, 2010
  • pp: 2400–2402

Suppression of intensity modulation contributions to signals in second harmonic wavelength modulation spectroscopy

Arup Lal Chakraborty, Keith Ruxton, and Walter Johnstone  »View Author Affiliations


Optics Letters, Vol. 35, Issue 14, pp. 2400-2402 (2010)
http://dx.doi.org/10.1364/OL.35.002400


View Full Text Article

Enhanced HTML    Acrobat PDF (401 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Recovery of the full 2 f wavelength modulation spectroscopy (WMS) signal in isolation from the 2 f residual amplitude modulation (RAM) due to nonlinear intensity modulation (IM) and distortion due to linear IM is demonstrated. The 2 f RAM is eliminated using a fiber delay line, while the linear IM-induced distortion is eliminated by a phasor decomposition approach. This generic and robust two-pronged strategy removes the need to separately measure the 2 f RAM in high-modulation-index calibration-free 2 f WMS. It is also important for widely tunable 2 f WMS using nontelecom diode lasers with highly nonlinear characteristics leading to high- 2 f RAM levels.

© 2010 Optical Society of America

OCIS Codes
(280.1740) Remote sensing and sensors : Combustion diagnostics
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6380) Spectroscopy : Spectroscopy, modulation
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Spectroscopy

History
Original Manuscript: April 30, 2010
Revised Manuscript: June 22, 2010
Manuscript Accepted: June 23, 2010
Published: July 8, 2010

Citation
Arup Lal Chakraborty, Keith Ruxton, and Walter Johnstone, "Suppression of intensity modulation contributions to signals in second harmonic wavelength modulation spectroscopy," Opt. Lett. 35, 2400-2402 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-14-2400

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.

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.

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.

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.

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