论文信息 - 0.53 bit/s/Hz spectral efficiency free-space demultiplexer with very low crosstalk, loss and polarisation dependence

0.53 bit/s/Hz spectral efficiency free-space demultiplexer with very low crosstalk, loss and polarisation dependence

The authors describe the performance of a diffraction grating demultiplexer For narrow channel spacing of 0.15 to 0.40 nm, operating over a 50 nm spectral range. The device exhibited a fibre-to-fibre loss of 3.8 dB, polarisation dependence of <0.3 dB, and background crosstalk of -60 dB. A spectral efficiency of 0.53 bit/Hz for NRZ transmission of 11/spl times/10 Gbit/s modulated channels spaced by 0.15 nm (18.8 GHz) is reported.

Polina Bayvel | E. G. Churin | Vitaly Mikhailov

[1] H. K. Kim,et al. 1.6 Tbit/s (40/spl times/40 Gbit/s) total capacity four-node optical networking using fully programmable A/D devices , 2000 .

[2] Polina Bayvel,et al. Coherent crosstalk and scalability of free-space wavelength routers , 1998 .

[3] Mikitaka Itoh,et al. Fabrication of low-loss and polarisation-insensitive 256 channel arrayed-waveguide grating with 25 GHz spacing using 1.5% /spl Delta/ waveguides , 2000 .

[4] P. Bayvel,et al. Design of free space WDM router based on holographic concave grating , 1999, IEEE Photonics Technology Letters.