A diode-laser-pumped, Er3+-doped fibre laser operating at 1.57µm
Barnes, W.L., Taylor, D.J., Fermann, M.E., Townsend, J.E., Reekie, L. and Payne, D.N. (1989) A diode-laser-pumped, Er3+-doped fibre laser operating at 1.57µm. In, Optical Fiber Communication (OFC '89), Houston, US,
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Description/Abstract
Erbium-doped fibers show promise as stable narrow-linewidth laser sources and optical amplifiers operating in the third telecommunications window around 1.55µm Diode laser pumping is possible using the weak pump-band located at 807nm, although this band suffers severely from excited-state absorption (ESA), which reduces gain and pump efficiency. At the low pump power available from diode lasers the Er3+ behaves as a quasi four-level system. However, by codoping the core glass heavily with Yb3+, it is possible to excite the Er3+ ions indirectly using energy transfer. The Yb3+ provides an intense broad pump-band centered at 900nm, which reduces the effect of ESA. As a consequence of the resulting higher pump efficiency, the laser will oscillate at the required shorter wavelengths
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Technical Digest Paper TUG4 |
| 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: | 77546 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 27 Jul 2012 14:15 |
| Contributors: | Barnes, W.L. (Author) Taylor, D.J. (Author) Fermann, M.E. (Author) Townsend, J.E. (Author) Reekie, L. (Author) Payne, D.N. (Author) |
| Date: | February 1989 |
| Additional Information: | Technical Digest Paper TUG4 |
| Status: | Unpublished |
| URI: | http://eprints.soton.ac.uk/id/eprint/77546 |
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