Multichannel optical communications using tunable Fabry-Perot amplifiers.
We propose use of a tunable Fabry-Perot amplifier as a channel selector in multichannel optical communications systems. Simultaneous adjustment of temperature (+/-7 degrees C) and current (+/-10% normalized change) leads to constant-gain and constant-bandwidth tuning. A 90% reflective coating on one amplifier facet is needed for a 1.5-GHz 3-dB bandwidth with a 25-dB facet-to-facet gain and leads to a possibility of thirtychannel transmission in the free spectral range of the amplifier with 5-GHz channel spacing and 20-dB adjacent channel suppression.
Kazovsky
L
L
Werner
J
J