5 February 2013 Optical regeneration on signals beyond 100Gbps with phase-sensitive amplification
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Abstract
Capacity demand has continued to increase exponentially. For the system capacity expansion, increasing the spectral efficiency by using multi-level modulation formats may be a good candidate. One drawback of multi-level formats is the requirement of higher signal-to-noise ratio. This requests more frequent OEO regenerations due to its shorter reach. Optical regeneration using phase sensitive amplifier (PSA) has a possibility to prolong the reach by suppressing phase noise generated through fiber transmission. In this paper, we discuss a network architecture having optical restoration process, and its advantages and merits. Then, we show proposed PSA and optical restoration schemes and their system tolerance against chromatic dispersion.
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Youichi Akasaka, Jeng-Yuan Yang, Inwoong Kim, Motoyoshi Sekiya, "Optical regeneration on signals beyond 100Gbps with phase-sensitive amplification", Proc. SPIE 8646, Optical Metro Networks and Short-Haul Systems V, 86460Q (5 February 2013); doi: 10.1117/12.2005265; https://doi.org/10.1117/12.2005265
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