Regenerative all-optical wavelength multicast for next generation WDM network and system applications

Abstract

We experimentally demonstrate regenerative all-optical wavelength multicast by simultaneous multi-wavelength conversion of 10 Gb/s non-return-to-zero signals to four ITU 100 GHz spaced channels with a receiver sensitivity improvement of 1.84 dB and less than 0.14 dB difference among all the multicast channels, using a single commercial monolithically integrated SOA-MZI. The multicast device also exhibited about 22 dB optical signal-to-noise ratio enhancement for all the converted channels compared to the original signal channel without wavelength conversion. Our experiment for the first time revealed the regeneration properties of a SOA-MZI device for WDM wavelength multicast purposes, and proved the excellent performance of a simple scheme for various future network and system applications, such as all-optical wavelength routing and grid networking.

Design and analysis of optical packet switching systems with multicast capability

“…Cross phase modulation (XPM) in an SOA-based interferometer or optical fiber is a promising candidature for multi-wavelength conversion [166][167][168][169][170][171][172][173][174][175], by which the converted signal quality can be significantly improved. The Mach-Zehnder interferometer (MZI) structure is often used among all the interferometric structure, since it can be easily integrated by using optical waveguide, leading to a compact device for flexible applications.…”

“…The Mach-Zehnder interferometer (MZI) structure is often used among all the interferometric structure, since it can be easily integrated by using optical waveguide, leading to a compact device for flexible applications. Multi-wavelength conversion based on the XPM in SOA-MZI has been explored and optimized by many schemes [170][171][172][173][174][175]. With an SOA-MZI, both inverted and non-inverted conversion can be achieved by means of XPM.…”