Abstract

The speckle pattern arising from a thin random, disordered scatterer may be used to detect the transversal mode of an incident beam. On the other hand, speckle patterns originating from meter-long multimode fibers can be used to detect different wavelengths. Combining these approaches, we develop a method that uses a thin random scattering medium to measure the wavelength of a near-infrared laser beam with picometer resolution. The method is based on the application of principal component analysis, which is used for pattern recognition and is applied here to the case of speckle pattern categorization.

© 2013 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Laser speckle reduction by multimode optical fiber bundle with combined temporal, spatial, and angular diversity

Dalip Singh Mehta, Dinesh N. Naik, Rakesh Kumar Singh, and Mitsuo Takeda
Appl. Opt. 51(12) 1894-1904 (2012)

Synthetic aperture superresolution by speckle pattern projection

Javier GarcĂ­a, Zeev Zalevsky, and Dror Fixler
Opt. Express 13(16) 6073-6078 (2005)

Simulating translation-induced laser speckle dynamics in photon Doppler velocimetry

Will J. Warren, Erik A. Moro, Matthew E. Briggs, and Eric B. Flynn
Appl. Opt. 53(21) 4661-4668 (2014)

References

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
Login to access OSA Member Subscription

Supplementary Material (1)

» Media 1: MOV (45291 KB)     

Cited By

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
Login to access OSA Member Subscription

Figures (4)

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
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations 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
Login to access OSA Member Subscription

Metrics

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
Login to access OSA Member Subscription