Quantum well modulators for thulium-doped fibre lasers

Mottahadeh, R., Seeds, A.J., Roberts, J.S., Button, C.C., Morkel, P.R. and Loh, W.H. (1992) Quantum well modulators for thulium-doped fibre lasers. In, Proceedings of IEE Colloquium on Fibre and Solid State Lasers. IEE Colloquium Fibre and Solid State Lasers , Institute of Electrical and Electronics Engineers, 2/1-2/8.


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Rare-earth doped single-mode optical fibres are ideal sources for producing mode locked pulses of very short duration since they have large fluorescence linewidths. To make full use of the linewidth very fast modulators or saturable absorbers are necessary. This work investigates the use of Multiple Quantum Well (MQW) modulators for modelocking and Q-switching fibre lasers. The particular attraction of this approach is that MQW modulators offer good on/off ratios for low voltage drive and are compact in size. Work carried out by Whitehead et al [1] led to the development of the Asymmetric Fabry Perot modulator (AFPM) structure which can achieve very high contrast by using MQW electro-absorption to obtain complete destructive interference of light reflected from the device

Item Type: Book Section
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions : University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 77353
Accepted Date and Publication Date:
19 May 1992Delivered
Date Deposited: 11 Mar 2010
Last Modified: 31 Mar 2016 13:11
URI: http://eprints.soton.ac.uk/id/eprint/77353

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