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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Description/Abstract
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) |
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| Related URLs: | |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 77535 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 02 Mar 2012 11:42 |
| Contributors: | Barnes, W.L. (Author) Reekie, L. (Author) Payne, D.N. (Author) |
| Date: | 1989 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/77535 |
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