Truly polarization maintaining laser beam delivery system (BDS) module based on hollow core fiber technology

Kostiantyn Vasko; Maciej Popenda; Ando Randromahefa; Alexandre Gorse; Devang Naik; Benoit Beaudou; Fetah Benabid

doi:10.1117/12.3002336

13 March 2024 Truly polarization maintaining laser beam delivery system (BDS) module based on hollow core fiber technology

Kostiantyn Vasko, Maciej Popenda, Ando Randromahefa, Alexandre Gorse, Devang Naik, Benoit Beaudou, Fetah Benabid

Author Affiliations +

Proceedings Volume PC12865, Fiber Lasers XXI: Technology and Systems; PC128650X (2024) https://doi.org/10.1117/12.3002336
Event: SPIE LASE, 2024, San Francisco, California, United States

Conference Poster

Abstract

Hollow-Core Photonic Crystal Fiber (HCPCF) technology has revolutionized Ultra-Short Pulse (USP) laser beam delivery. Industry-grade USP laser beam delivery system (BDS) modules, developed by GLOphotonics, however, display polarization fluctuations during movement. To overcome this, we've developed a BDS module maintaining constant polarization irrespective of motion. This BDS uses an inhibited-coupling HCPCF with an injected beam from a 1030 nm wavelength USP laser. Demonstrating a 97% transmission rate and stable linear polarization (34dB of polarization extinction ratio (PER)), it showed less than 3% power fluctuation and less than 1% polarization fluctuation during movement. This marks a significant advancement in BDS applications.

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Kostiantyn Vasko, Maciej Popenda, Ando Randromahefa, Alexandre Gorse, Devang Naik, Benoit Beaudou, and Fetah Benabid "Truly polarization maintaining laser beam delivery system (BDS) module based on hollow core fiber technology", Proc. SPIE PC12865, Fiber Lasers XXI: Technology and Systems, PC128650X (13 March 2024); https://doi.org/10.1117/12.3002336

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