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Characteristics of a semiconductor laser pumped brillouin amplifier with electronically controlled bandwidth

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2 Author(s)
Olsson, N.A. ; AT&T Bell Laboratories, Murray Hill, NJ, USA ; van der Ziel, J.P.

We demonstrate the operation of a semiconductor laser pumped fiber Brillouin amplifier. An optical gain of 5.5 dB/mW of pump power is obtained. The 15-MHz intrinsic bandwidth of the amplifier was extended more than one order of magnitude by adding frequency modulation to the pump laser. Bit-error-rate receiver sensitivity measurements with an in-line Brillouin amplifier demonstrate a 16-dB improvement in the system gain at 10 Mbit/s and a 8.5-dB improvement at 90 Mbit/s. Noise calculations show that the amplifier has an excess noise factor of 50-500 depending on the amplifier length and pump power.

Published in:

Lightwave Technology, Journal of  (Volume:5 ,  Issue: 1 )

Date of Publication:

Jan 1987

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