Fast-scanning dispersion-adjustable reference delay for OCT using fiber Bragg gratings

Changhuei Yang; Siavash Yazdanfar; Joseph A. Izatt

doi:10.1117/12.500987

2 October 2003 Fast-scanning dispersion-adjustable reference delay for OCT using fiber Bragg gratings

Changhuei Yang, Siavash Yazdanfar, Joseph A. Izatt

Author Affiliations +

Proceedings Volume 5140, Optical Coherence Tomography and Coherence Techniques; (2003) https://doi.org/10.1117/12.500987
Event: European Conferences on Biomedical Optics 2003, 2003, Munich, Germany

Abstract

We report on the use of two matched linearly chirped fiber Bragg grating (FBG) in the reference arm of a Michelson interferometer as a means to achieve variable optical delay. We demonstrate that the properties of a linearly chirped FBG can be exploited to achieve millimeters of optical delay with physical stretches of the FBG on the order of tens of microns; this allows for optical delay line configurations that are easily driven by piezo-electric actuators.

Citation Download Citation

Changhuei Yang, Siavash Yazdanfar, and Joseph A. Izatt "Fast-scanning dispersion-adjustable reference delay for OCT using fiber Bragg gratings", Proc. SPIE 5140, Optical Coherence Tomography and Coherence Techniques, (2 October 2003); https://doi.org/10.1117/12.500987

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