A practical and compact subpicosecond optical fibre amplifier


Gray, S., Caplen, J.E., Minelly, J.D., Grudinin, A.B., Nagatsuma, T. and LeFlohic, M. (1997) A practical and compact subpicosecond optical fibre amplifier. In, Conference on Lasers and Electro-Optics (CLEO)/Pacific Rim '97, Chiba, JP, 14 - 18 Jul 1997.

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Description/Abstract

Many experiments on all optical signal processing for high speed communications systems require the generation of high energy subpicosecond pulses. The production of such pulses in optical fibres is limited by the high peak powers generated in the fibre core and the onset of large nonlinear effects such as SPM induced spectral broadening and Raman scattering of the pulse energy to longer wavelengths. The usual technique to overcome these limitations is to employ chirped pulse amplification (CPA) to initially stretch the pulses to reduce the peak power before amplifying and recompressing them. This technique has proved successful at generating pulses with microjoule energies [1] but only at low (kHz) repetition rates. At the high repetition rates used in communication experiments CPA cannot be used because it will create overlap and interference between the pulses and therefore a different approach is required. In this paper we demonstrate the use of a large area Er/Yb fibre to directly amplify subpicosecond pulses to energies greater than 1 nJ with peak powers in excess of 2000 Watts in an all fibre configuration

Item Type: Conference or Workshop Item (Paper)
Related URLs:
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QC Physics
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 76731
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:56
URI: http://eprints.soton.ac.uk/id/eprint/76731

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