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Proceedings Paper

Polarization-switched optical fiber laser for ac optical nulling bridges
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Paper Abstract

Theoretical analysis has shown that a switched optical bridge (Sw-OB), in which a single beam is alternated between the reference and measurement optical paths, has the potential of rendering sensitive measurements of transmittance variations in optical devices. For a laser source with adequate switching characteristics, measurements limited by the shot-noise of the photodetectors are predicted. This paper demonstrates the feasibility of realizing a polarization switched fiber laser that could find direct application for Sw-OBs. Full switching between two orthogonal polarization states is achieved by adjusting the coupling between the polarization modes and by varying the losses for each mode independently. Although some bulk optical elements are used for this demonstration, an all-fiber version of the proposed laser configuration could be realized by using polarization sensitive fiber devices.

Paper Details

Date Published: 17 February 2003
PDF: 5 pages
Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); doi: 10.1117/12.474306
Show Author Affiliations
Juan Hernandez-Cordero, Universidad Nacional Autonoma de Mexico (Mexico)


Published in SPIE Proceedings Vol. 4833:
Applications of Photonic Technology 5

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