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Highly efficient Er3+ doped fibre lasers pumped at 980nm

Highly efficient Er3+ doped fibre lasers pumped at 980nm
Highly efficient Er3+ doped fibre lasers pumped at 980nm
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+.
Barnes, W.L.
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Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Payne, D.N.
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Barnes, W.L.
eb37c8ae-64f0-4857-a10d-202b4b09a271
Reekie, L.
ec314137-6924-44ad-86a4-ff3f9a67c1b5
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d

Barnes, W.L., Reekie, L. and Payne, D.N. (1989) Highly efficient Er3+ doped fibre lasers pumped at 980nm. 7th International Conference on Integrated Optics & Optical Fibre Communication. 18 - 21 Jul 1989.

Record type: Conference or Workshop Item (Paper)

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+.

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Published date: 1989
Venue - Dates: 7th International Conference on Integrated Optics & Optical Fibre Communication, 1989-07-18 - 1989-07-21

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Local EPrints ID: 77535
URI: http://eprints.soton.ac.uk/id/eprint/77535
PURE UUID: ea38b5e7-f4ed-40c2-9f56-e76084dd8d36

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Date deposited: 11 Mar 2010
Last modified: 29 Jan 2020 13:35

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