Simultaneous dispersion and non-linearity compensation with mid-span optical phase conjugation and distributed Raman amplifier for a sub-carrier multiplexed optical transmission link |
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Authors: | S Chandra A Vishnu Vardhanan |
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Institution: | a Department of Information Technology, Government of India, 6 CGO Complex, New Delhi 110003, India b Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur 721302, India |
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Abstract: | Optical phase conjugation (OPC) and distributed Raman amplifier (DRA) combination (OPC-DRA) is demonstrated as a potential enabling solution for simultaneous reduction of fiber non-linearities and dispersion compensation of a sub-carrier multiplexed (SCM) optical transmission link. The present work is focused on the use of OPC-DRA combination for system performance improvement in terms of composite second order distortion (CSO) and carrier to noise ratio (CNR) of the SCM link. The analysis further shows that, introduction of DRA with proper pumping scheme significantly reduce fiber non-linearity resulting in improvement of the system performance in terms of CNR, compared to the situation where only mid-way optical phase conjugation is used. |
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Keywords: | Sub-carrier multiplexing Optical phase conjugation Distributed Raman amplifier Composite second order distortion Carrier to noise ratio |
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