Title :
Regenerative erbium-doped fibre ring laser-amplifier
Author :
Teyo, T.C. ; Poopalan, P. ; Ahmad, H.
Author_Institution :
Dept. of Phys., Malaya Univ., Kuala Lumpur, Malaysia
fDate :
8/19/1999 12:00:00 AM
Abstract :
A uni-directional regenerative erbium-doped fibre ring laser-amplifier is investigated in an amplifier system operated below oscillation threshold. Regenerative gain as high as 23.9 dB was achieved for zero detuning at a pump power of 14.8 mW and input signal level of -34.9 dBm. An improvement in the noise performance was observed due to the suppression of amplified spontaneous emission (ASE) powers around the zero detuning region. Experimental results showed a good agreement with those predicted theoretically
Keywords :
erbium; laser tuning; optical fibre amplifiers; ring lasers; superradiance; 14.8 mW; 23.9 dB; Er3+-doped fibre ring laser-amplifier; amplified spontaneous emission; amplifier system; input signal level; noise performance; oscillation threshold; pump power; regenerative gain; uni-directional regenerative laser-amplifier; zero detuning region;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990981
