Abstract
Signal-to-noise ratio improvement using a semiconductor optical regenerative amplifier (SORA) is characterized. It is demonstrated that for a noise-degraded return-to-zero differential phase-shift keying signal at 10 Gb/s the Q factor at the SORA's output is improved relative to its input for both the phase and amplitude noise cases. The Q-factor improvement is 1.6 dB in single-channel operation for the phase-noise only case and 0.55 dB for the amplified spontaneous emission noise-only case through the SORA.
Original language | English (US) |
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Pages (from-to) | 49-51 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 18 |
Issue number | 1 |
DOIs | |
State | Published - 2006 |
Funding
Manuscript received June 21, 2005; revised August 29, 2005. This work was supported in part by the U.S. National Science Foundation under Grant ECS-0401251. The work of M. Shin was also supported by the Postdoctoral Fellowship Program of the Korea Research Foundation under Grant M01-2004-000-20342-0.
Keywords
- Differential phase-shift keying (DPSK)
- Optical regeneration
- Semiconductor optical amplifier (SOA)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering