Coherent Polarization Locking of thermal sensitive Ho:YAG laser

C.F. Chua; L.H. Tan; P.B. Phua

doi:10.1117/12.970542

8 November 2012 Coherent polarization locking of thermal-sensitive Ho:YAG laser

C.F. Chua, L.H. Tan, P.B. Phua

Proceedings Volume 8547, High-Power Lasers 2012: Technology and Systems; 85470U (2012) https://doi.org/10.1117/12.970542
Event: SPIE Security + Defence, 2012, Edinburgh, United Kingdom

Abstract

We had demonstrated the advantage of using Coherent Polarization Locking on thermal-sensitive Ho:YAG laser cavity. We overcome several thermal issues related to Ho:YAG laser by distributing the gain over a large volume. We passively coherent locked two orthogonal polarized lasers, achieving 9.6W of output power with near perfect (greater than 99%) combining efficiency. The resultant laser produced near diffraction-limited beam quality of M² ~1.1 and excellent power stability. As compared to conventional laser cavity, we had shown the increased in single-pass absorption, suppression of output power saturation and improvement in beam quality using Coherent Polarization Locking.

Citation Download Citation

C.F. Chua, L.H. Tan, and P.B. Phua "Coherent polarization locking of thermal-sensitive Ho:YAG laser", Proc. SPIE 8547, High-Power Lasers 2012: Technology and Systems, 85470U (8 November 2012); https://doi.org/10.1117/12.970542

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