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10-Gb/s RZ-DPSK transmitter using a saturated SOA as a power booster and limiting amplifier

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5 Author(s)
Xing Wei ; Bell Labs, Lucent Technologies, Murray Hill, NJ, USA ; Yikai Su ; Xiang Liu ; Leuthold, J.
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The performance of a semiconductor optical amplifier (SOA) in the deep saturation regime is studied for single-channel return-to-zero (RZ) and nonreturn-to-zero differential phase-shift keying (DPSK) and on-off keying signals at 10 Gb/s. It is found that saturated SOAs can be used as power boosters and limiting amplifiers for RZ-DPSK transmitters with almost no compromise of performance.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 6 )