NDLI: Theoretical and experimental investigation of inter-channel crosstalk mitigation by assist light in a TOAD de-multiplexer

Content Provider	IEEE Xplore Digital Library
Author	Barman, A.D. Fresi, F. Sengupta, I. Poti, L. Bogoni, A.
Copyright Year	2009
Description	Author affiliation: Photonic Network National Laboratory - CNIT, via Moruzzi, 1 - 56124, Pisa, Italy (Poti, L.; Bogoni, A.) \|\| Institute of Radio Physics and Electronics, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata 700009 W.B., India (Barman, A.D.) \|\| Scuola Superiore Sant'Anna, via Moruzzi, 1 - 56124, Pisa, Italy (Fresi, F.) \|\| ECE Department, MCKV Institute of Engineering, 243, G.T. ROAD (North), Liluah, Howrah- 711204, W.B. India (Sengupta, I.)
Abstract	In the present work we have investigated experimentally and theoretically inter-channel crosstalk in an all-optical de-multiplexer at 50 Gbps using a terahertz optical asymmetric de-multiplexer (TOAD) in presence of continuous wave (CW) assist light. CW assist light substantially reduces gain recovery time and gain depletion in the non linear element present in the TOAD. We found that with assist light ‘on’, power penalty in the de-multiplexing device is reduced and dynamic range of input probe power is raised to 10 dB. Assist light also removes Bit-Error-Rate (BER) floor due to crosstalk and distortion. Lastly the optimum CW assist light wavelength is found to be at the edge of 3-dB gain peak of semiconductor optical amplifier for minimum crosstalk. The experimental results are validated with the theoretical investigation.
Starting Page	1
Ending Page	4
File Size	1002517
Page Count	4
File Format	PDF
ISBN	9781424450732
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-14
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	CODEC
Subject Keyword	Optical interferometry Phase modulation Optical de-multiplexing Crosstalk Optical distortion Optical fiber loop mirror Inter-channel crosstalk Radio frequency Cross phase modulation (XPM) Voltage Gain recovery Fiber nonlinear optics Optical modulation Intensity modulation Nonlinear optics Semiconductor optical amplifier (SOA)
Content Type	Text
Resource Type	Article

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