Demonstration Of Passively Cooled High-Power Yb Fiber Amplifier

Keywords

amplifier; convection; fiber; heat; high-power; interferometry; passive; thermal; Yb

Abstract

This work investigates the feasibility of passive cooling in high-power Yb amplifiers. Experimentally, an all-glass airclad step-index (ACSI) amplifier is diode-pumped with 400W and provides 200W power levels. With only natural convection to extract heat, core temperatures are estimated near 130°C with no degradation of performance relative to cooled architectures. Further, advanced analysis techniques allow for core temperature determination using thermal interferometry without the need for complicated stabilization or calibration.

Publication Date

1-1-2018

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

10512

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.2290243

Socpus ID

85045635701 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85045635701

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