Standard mode 40 Gbit∕s performance analysis of evanescent coupling ‘active–passive’ Mach-Zehnder interferometers for all-optical regeneration

Abstract

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Measurements and simulations of non-linear noise re-distribution in an SOA

“…ANY DEVICES for all-optical signal processing, such as regenerators and wavelength converters, are based on the nonlinear saturation characteristics of semiconductor optical amplifiers (SOAs) [1]- [3]. The noise reduction in a saturated SOA is also used in, for example, spectrum sliced wavelength-division-multiplexing systems [4].…”

Lasing Mechanism Analysis of Self-Pulsating Distributed Feedback Laser Diodes and Successful Demonstration of All-Optical Signal Recovery at 40 Gbps

“…All-optical wavelength converters with a monolithically integrated SOA-MZI for an RZ 40 Gbps optical signal have been reported by other research groups. 1) Using the same operation principle, we developed an alloptical wavelength converter by the well-designed device structure optimization method mentioned later and reported error-free conversion operation with reduced polarization dependence for a non-return to zero (NRZ) 40 Gbps optical signal. 2) The device features are as follows.…”

“…According to the need for the reduction in electric power consumption as well as the increase in information processing capacity, all-optical communication will be necessary in the future, where both wavelength conversion and signal recovery function are the most fundamental issues. To realize these functions, semiconductor-based devices, such as a semiconductor-optical-amplifier-based Mach-Zehnder interferometer (SOA-MZI) 1,2) and a self-pulsating laser diode (SP-LD) have been studied. SP-LDs with distributed feedback (DFB) active sections [3][4][5] were proposed for the application of signal recovery.…”

Measurements and Simulations of nonlinear noise redistribution in an SOA

“…M ANY DEVICES for all-optical signal processing, such as regenerators and wavelength converters, are based on the nonlinear saturation characteristics of semiconductor optical amplifiers (SOAs) [1]- [3]. The noise reduction in a saturated SOA is also used in, for example, spectrum sliced wavelength-division-multiplexing systems [4].…”

“…This letter presents experimental characterization and numerical simulations showing reduction in width and, to our knowledge, for the first time a change in shape of the pdf of the signal after an SOA. The results are particularly important for all-optical regenerators employing SOAs, where the change in the tails of the noise distribution can lead to substantial bit-error-rate (BER) penalties [3], [8], [9].…”