Double-stage cross-gain modulation in SOAs: an effective technique for WDM multicasting

We experimentally demonstrate an optical circuit capable of multiwavelength conversion. The circuit structure is intrinsically stable and polarization independent. It may thus be a practical solution for wavelength-division multiplexing multicasting applications. Its working principle relies on synchronous double-stage cross-gain modulation in SOAs between an incoming data-modulated signal and several local continuous wave lasers. We report the simultaneous wavelength conversion of an input 10Gb/s nonreturn-to-zero to eight 200-GHz-spaced output channels. The obtained signals show only a moderate optical signal-to-noise ratio penalty.

[1]  Roberto Proietti,et al.  All optical regeneration by cross gain compression in semiconductor amplifiers , 2005 .

[2]  L. Rau,et al.  Wavelength multicasting using an ultra high-speed all-optical wavelength converter , 2001, OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171).

[3]  E. Ciaramella,et al.  Multiple wavelength conversion for WDM multicasting by FWM in an SOA , 2004, IEEE Photonics Technology Letters.

[4]  Richard V. Penty,et al.  Wavelength conversion at 40 Gbit/s via cross-gain modulation in distributed feedback laser integrated with semiconductor optical amplifier , 1999 .

[5]  William Shieh,et al.  A polarization-independent and contrast-ratio-enhancing module for all-optical wavelength shifting using SOA's , 1996 .

[6]  K. Nishimura,et al.  All-optical multi-wavelength conversion of 10 Gbit/s NRZ/RZ signals based on SOA-MZI for WDM multicasting , 2005 .

[7]  Laurent Lablonde,et al.  TWO-STAGE WAVELENGTH CONVERTER WITH IMPROVED EXTINCTION RATIO , 1995 .

[8]  Chow,et al.  All-Optical Wavelength Conversion With Multi-Channel Broadcasting at 10 Gb/s Using an Electroabsorption Modulator , 2003 .

[9]  S. L. Danielsen,et al.  All-optical wavelength conversion by semiconductor optical amplifiers , 1996 .

[10]  W. Shieh,et al.  Polarization-independent and contrast-ratio-enhancing module for all-optical wavelength shifting using SOAs , 1996, Optical Fiber Communications, OFC..

[11]  Juerg Leuthold,et al.  All-optical wavelength conversion and broadcasting to eight separate channels by a single semiconductor optical amplifier delay interferometer , 2002, Optical Fiber Communication Conference and Exhibit.

[12]  K. Chow,et al.  All-optical wavelength conversion with multicasting at 6×10 Gbit/s using electroabsorption modulator , 2003 .

[13]  George N. Rouskas.  Optical layer multicast: rationale, building blocks, and challenges , 2003 .