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

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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