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

We analyze the influence of heat generation caused by nonradiative transitions in a high-power 1.55 microm double-clad erbium-ytterbium fiber laser on the Stark level population. At strong pumping rates, 1 microm lasing can start as a result of parasitic reflections. We present a model that allows u...

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Bibliographic Details
Published in:Optics letters 2005-11, Vol.30 (22), p.3030-3032
Main Authors: CANAT, Guillaume, MOLLIER, Jean-Claude, JAOUËN, Yves, DUSSARDIER, Bernard
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Doped-insulator lasers and other solid state lasers
Electric, optical and optoelectronic circuits
Electronics
Engineering Sciences
Exact sciences and technology
Fiber lasers
Fiber optics
Fundamental areas of phenomenology (including applications)
Integrated optics. Optical fibers and wave guides
Lasers
Optical and optoelectronic circuits
Optics
Photonic
Physics
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Summary:We analyze the influence of heat generation caused by nonradiative transitions in a high-power 1.55 microm double-clad erbium-ytterbium fiber laser on the Stark level population. At strong pumping rates, 1 microm lasing can start as a result of parasitic reflections. We present a model that allows us to simulate the effect of self-generated heat on the Stark level population by using the MacCumber relation. Heat generation plays a significant role and improves the 1.5 microm laser's efficiency by increasing the 1 microm lasing threshold.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.30.003030