CGH-based real-time analysis of fiber Bragg gratings in few mode LMA fibers

Markus Mundus; Jens U. Thomas; Christian Voigtländer; Ria G. Becker; Cesar Jauregui; Andreas Tünnermann; Stefan Nolte

doi:10.1117/12.910290

15 February 2012 CGH-based real-time analysis of fiber Bragg gratings in few mode LMA fibers

Markus Mundus, Jens U. Thomas, Christian Voigtländer, Ria G. Becker, Cesar Jauregui, Andreas Tünnermann, Stefan Nolte

Author Affiliations +

Proceedings Volume 8237, Fiber Lasers IX: Technology, Systems, and Applications; 823712 (2012) https://doi.org/10.1117/12.910290
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

We report on a new approach for experimentally analyzing transversal mode coupling in few mode fiber Bragg gratings (FBGs). Utilizing a spatial light modulator (SLM) enables real-time modulation of the incident spatial light distribution coupled into the fiber. Thus, individual transversal fiber modes can be excited, allowing for effort-less mode switching and mode rotation. Simultaneously, the transmitted and reflected modes are analyzed. We use this setup to demonstrate LP mode discrimination by asymmetric FBGs which favor reflection of a designated LP₁₁ mode orientation for few mode large mode area fibers.

Citation Download Citation

Markus Mundus, Jens U. Thomas, Christian Voigtländer, Ria G. Becker, Cesar Jauregui, Andreas Tünnermann, and Stefan Nolte "CGH-based real-time analysis of fiber Bragg gratings in few mode LMA fibers", Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 823712 (15 February 2012); https://doi.org/10.1117/12.910290

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