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Optics Letters

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  • Vol. 37, Iss. 13 — Jul. 1, 2012
  • pp: 2478–2480

Mode analysis with a spatial light modulator as a correlation filter

Daniel Flamm, Darryl Naidoo, Christian Schulze, Andrew Forbes, and Michael Duparré  »View Author Affiliations


Optics Letters, Vol. 37, Issue 13, pp. 2478-2480 (2012)
http://dx.doi.org/10.1364/OL.37.002478


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Abstract

A procedure for the real-time analysis of laser modes using a phase-only spatial light modulator is outlined. The procedure involves encoding into digital holograms by complex amplitude modulation a set of orthonormal basis functions into which the initial field is decomposed. This approach allows any function to be encoded and refreshed in real time (60 Hz). We implement a decomposition of guided modes propagating in optical fibers and show that we can successfully reconstruct the observed field with very high fidelity.

© 2012 Optical Society of America

OCIS Codes
(030.4070) Coherence and statistical optics : Modes
(060.2270) Fiber optics and optical communications : Fiber characterization
(090.1995) Holography : Digital holography
(140.3295) Lasers and laser optics : Laser beam characterization

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 14, 2012
Revised Manuscript: April 25, 2012
Manuscript Accepted: April 30, 2012
Published: June 19, 2012

Citation
Daniel Flamm, Darryl Naidoo, Christian Schulze, Andrew Forbes, and Michael Duparré, "Mode analysis with a spatial light modulator as a correlation filter," Opt. Lett. 37, 2478-2480 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-13-2478


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