Highly efficient Er3+ doped fibre lasers pumped at 980nm
Barnes, W.L., Reekie, L. and Payne, D.N. (1989) Highly efficient Er3+ doped fibre lasers pumped at 980nm. In, 7th International Conference on Integrated Optics & Optical Fiber Communication, Kobe, Japan, Jul 1989.
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The Er3+ fibre laser operates at a wavelength between 1.5 and 1.6 microns and is thus of interest for both telecommunication purposes and, since it can be Q-switched to give high pulse powers, in eye-safe range-finding systems. To date, ~810nm has been the preferred pump wavelength owing to the ready availability of laser diodes. However, the 810nm pump band of Er3+ suffers from the serious disadvantage of pump excited-state absorption (ESA). As a result much of the pump light is wasted in exciting ions from the metastable level to a still higher energy level, rather than producing stimulated emission. This is reflected in the best reported slope efficiency of 17%, obtained for Er3+ sensitized with Yb3+.
|Item Type:||Conference or Workshop Item (Paper)|
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||11 Mar 2010|
|Last Modified:||02 Mar 2012 11:42|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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