Title :
Self-seeded, gain-switched optical short pulse generation with high sidemode suppression ratio and extended wavelength-tuning range
Author :
Chen, J.W. ; Wang, D.N.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China
fDate :
4/17/2003 12:00:00 AM
Abstract :
A simple self-seeding system is presented to produce optical short pulses with high sidemode suppression ratio and extended wavelength-tuning range. The laser external cavity consists of two fibre Bragg gratings connected in tandem, each of the gratings can be tuned about 14 nm, centred on its peak wavelength. The sidemode suppression ratio achieved is better than 32 dB across a 25.7 nm wavelength-tuning range.
Keywords :
Bragg gratings; laser beam applications; laser cavity resonators; laser tuning; optical fibres; optical pulse generation; extended wavelength-tuning range; fibre Bragg gratings; gain-switched short pulse generation; high sidemode suppression ratio; laser external cavity; optical short pulse generation; self-seeding system; tandem-connected FBGs; wavelength tunable pulse trains;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030443
