A 32-channel tunable receiver module for wavelength-division multiple-access networks

We report the realization of a 32-channel tunable optical receiver module for packet-switched multiwavelength computer networks. The tunable receiver consists of a planar array waveguide grating demultiplexer, photodetector array and followed by selectable receivers. The channel selection is based on sequential switching of the received optical signals in stages at the analogue level. Typical receiver sensitivity is -24 dBm at 10/sup -9/, using a 700-Mb/s nonreturn-to-zero (NRZ) pseudorandom binary sequence (PRBS). The channel switching time is /spl sim/40 ns.

[1]  F. Tong,et al.  A wavelength-matching scheme for multiwavelength optical links and networks using grating demultiplexers , 1995, IEEE Photonics Technology Letters.

[2]  F. Tong,et al.  Capacitive loading of optical/electronic wavelength selector for WDMA networks , 1994 .

[3]  Yaron Silberberg,et al.  Integrated grating demultiplexer and pin array for high-density wavelength division multiplexed detection at 1.5 μm , 1993 .

[4]  G. Veith,et al.  Polarisation-independent switching in a nonlinear optical loop mirror by a dual-wavelength switching pulse , 1993 .

[5]  H. Takahashi,et al.  Polarization-insensitive arrayed-waveguide wavelength multiplexer with birefringence compensating film , 1993, IEEE Photonics Technology Letters.

[6]  Franklin Fuk-Kay Tong,et al.  POPSMAC: A Medium Access Protocol for Packet- Switched Passive Optical Networks using WDMA , 1993 .

[7]  M. Zirngibl,et al.  WDM receiver by monolithic integration of an optical preamplifier, waveguide grating router and photodiode array , 1995 .

[8]  F. Tong,et al.  Characterization of a 16-channel optical/electronic selector for fast packet-switched WDMA networks , 1994, IEEE Photonics Technology Letters.

[9]  Robert J. Wojnarowski,et al.  Non-Digital Extensions of an Embedded Chip MCM Technology , 1994, Proceedings of the International Conference on Multichip Modules.

[10]  F. Tong,et al.  A four-channel monolithic optical/electronic selector for fast packet-switched WDMA networks , 1994, IEEE Photonics Technology Letters.