Real-time mode analysis of fiber-to-fiber coupling processes using the correlation filter method

Daniel Flamm; Philipp Gelszinnis; Christian Schulze; Siegmund Schröter; Michael Duparré

doi:10.1117/12.2004250

26 February 2013 Real-time mode analysis of fiber-to-fiber coupling processes using the correlation filter method

Daniel Flamm, Philipp Gelszinnis, Christian Schulze, Siegmund Schröter, Michael Duparré

Proceedings Volume 8601, Fiber Lasers X: Technology, Systems, and Applications; 86010L (2013) https://doi.org/10.1117/12.2004250
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

We use the correlation filter method for mode analysis and characterize a fiber coupling process modally resolved. In our experiment light is coupled from a single-mode fiber into a multi-mode fiber. During the coupling process the transverse position of the single-mode fiber towards the multi-mode fiber is varied and the actually guided mode content is measured simultaneously. This measurement process allows to maximize the power guided by the fundamental mode and, hence, to achieve most brilliant beam quality in real-time.

Citation Download Citation

Daniel Flamm, Philipp Gelszinnis, Christian Schulze, Siegmund Schröter, and Michael Duparré "Real-time mode analysis of fiber-to-fiber coupling processes using the correlation filter method", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86010L (26 February 2013); https://doi.org/10.1117/12.2004250

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