Pulse Repetition Rates in a Passive Self Starting Femtosecond Soliton Fibre Laser,
Abstract
Rare-earth doped optical fibres offer wide gain bandwidths and provide an ideal medium for the generation of ultra-short optical pulses. To date research in mode-locked fibre lasers has centered on active mode-locking schemes incorporating fast phase and amplitude modulators. However, the large non-linear effects obtainable in optical fibres make passive mode-locking an attractive proposition. A self-starting, passive mode-locking scheme based on the reflection properties of the Non-linear Amplifying Loop Mirror (NALM) has recently been reported. The system is capable of both picosecond/nanosecond duration square pulse operation and ultra-short femtosecond soliton generation. In this paper we discuss the various modes of operation of the laser and present results on pulse repetition rates, an important characteristic for a practical source of ultra-short solitons.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 1992
- Accession Number
- ADP007543
Entities
People
- D. J. Richardson
- D. N. Payne
- M. W. Phillips
- R. I. Laming
- V. J. Matsas
Organizations
- University of Southampton