All-Optical Clock Recovery Using Nonlinear Kerr Effect in Optical Fibers

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Damani, Rasoul | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47112 (05)
University: Sharif University of Technology
Department: Electrical Engineering
Advisor(s): Salehi, Javad
Abstract:
In this thesis, a brief review of the previously introduced all optical clock recovery methods are presented and then, two novel all optical PLLs, based on nonlinear Kerr effects in fiber optics, are introduced and thoroughly investigated. To obtain more insight into the subject, firstly, nonlinear Kerr effect and its two main applications, including FOPA amplifiers and optical Kerr shutters are described. One of the proposed PLLs employs a FOPA in its error signal detection process, and the other is based on using two Kerr shutter switches to detect the error signal. Since the PLLs are based on the quasi-instantaneous Kerr effect, they are expected to be suitable in ultra-high speed communication systems. Numerical results show an inherent timing jitter of about 2 fs for the FOPA-based OPLL in a 80 Gb/S optical OTDMA system; this PLL also acts as a de-multiplexer. The other OPLL, which is based on Kerr shutters, exhibits almost zero inherent timing jitter
Keywords:
Timing Jitter ; All-Optical Clock Recovery ; Nonlinear Kerr Effect ; Optical Phase-Locked Loop (OPLL) ; Optical Parametric Amplifiers ; Optical Kerr Shutter Switch

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