Evidence of thermal effects in high power Er3+-Yb3+ fiber laser

We analyse the influence of heat generation by non radiative transitions in high power 1.55\(\mu\)m double cladding Erbium-Ytterbium fiber laser. At strong pumping rates, 1\(\mu\)m lasing can start due to parasitic reflections. We present a model including heat generation and its effect on the Stark...

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Bibliographic Details
Published in:arXiv.org 2011-12
Main Authors: Canat, Guillaume, J -C Mollier, Jaouen, Yves, Dussardier, Bernard
Format: Article
Language:English
Subjects:
Erbium
Fiber lasers
Heat generation
Laser beam cladding
Laser pumping
Lasers
Pumping rates
Temperature effects
Ytterbium
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Summary:We analyse the influence of heat generation by non radiative transitions in high power 1.55\(\mu\)m double cladding Erbium-Ytterbium fiber laser. At strong pumping rates, 1\(\mu\)m lasing can start due to parasitic reflections. We present a model including heat generation and its effect on the Stark level population using the MacCumber relation. Heat generation plays then a significant role and improves the 1.5\(\mu\)m laser efficiency by increasing the 1\(\mu\)m threshold.
ISSN:2331-8422
DOI:10.48550/arxiv.1112.0163