Birefringence of femtosecond written fiber Bragg gratings for linear polarized fiber lasers

Georg R. Schwartz; Ria G. Krämer; Thorsten A. Goebel; Malte P. Siems; Daniel Richter; Stefan Nolte

doi:10.1117/12.2646991

28 March 2023 Birefringence of femtosecond written fiber Bragg gratings for linear polarized fiber lasers

Georg R. Schwartz, Ria G. Krämer, Thorsten A. Goebel, Malte P. Siems, Daniel Richter, Stefan Nolte

Proceedings Volume PC12402, Components and Packaging for Laser Systems IX; PC1240202 (2023) https://doi.org/10.1117/12.2646991
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

We present an investigation of birefringence in ultrashort pulse and phase mask written fiber Bragg gratings (FBGs). Polarization dependent loss and shift of the resonance wavelength as well as the polarization extinction ratio of the FBGs was determined. As expected, we could find a significant dependency connecting the grating strengths and the birefringence . For high reflector gratings, birefringence of up to 10^-5, corresponding to a resonance wavelength shift of up to 10 pm was measured. The results show excellent suitability for usage of the FBGs in linear polarized fiber lasers.

Conference Presentation

Citation Download Citation

Georg R. Schwartz, Ria G. Krämer, Thorsten A. Goebel, Malte P. Siems, Daniel Richter, and Stefan Nolte "Birefringence of femtosecond written fiber Bragg gratings for linear polarized fiber lasers", Proc. SPIE PC12402, Components and Packaging for Laser Systems IX, PC1240202 (28 March 2023); https://doi.org/10.1117/12.2646991

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