Accession Number:

ADP007543

Title:

Pulse Repetition Rates in a Passive Self Starting Femtosecond Soliton Fibre Laser,

Descriptive Note:

Corporate Author:

SOUTHAMPTON UNIV (UNITED KINGDOM)

Personal Author(s):

• Richardson, D. J.
• Laming, R. I.
• Payne, D. N.
• Matsas, V. J.
• Phillips, M. W.

Report Date:

1992-05-22

Pagination or Media Count:

4.0

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 picosecondnanosecond 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.

Descriptors:

• *SOLITONS
• *GLASS LASERS
• AMPLITUDE
• GAIN
• LASERS
• LOOPS
• MODULATORS
• OPERATION
• PHASE
• PULSES
• RATES
• REFLECTION
• STARTING
• SYMPOSIA
• UNITED KINGDOM
• GLASS FIBERS
• LIGHT PULSES
• SHORT PULSES

Subject Categories:

• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE