Compact colorless tunable dispersion compensator with 1000 ps/nm tuning range for 40-Gb/s data rates
01 January 2006
A novel tunable dispersion compensator (TDC) with ±500 ps/nm tuning range and bandwidth support for 40-Gb/s signals is described. The TDC is constructed from a waveguide grating router (WGR) that provides very high spatial dispersion and a deformable cylindrical mirror for applying quadratic spatial phase across the dispersed wavefront. The WGR's 100- GHz free-spectral range allows the device to simultaneously apply the same dispersion to all WDM channels.