Title :
Optical CDMA by spectral encoding of LED for ultrafast ATM switching
Author :
Zaccarin, D. ; Kavehrad, M.
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
Abstract :
Proposes a new optical routing technique based on amplitude spectral encoding of low-cost broadband sources such as light-emitting-diodes (LEDs). The proposed system uses a standard nondispersive lens-grating apparatus, and simple direct-detection receivers. Suitable codes that can allow complete orthogonality between the users are given. Practical considerations are discussed. The application to ATM switching using optical interconnects is studied, in terms of switch capacity. Performance calculations are performed. It is shown that a switch throughput of 840 Gbit/s and 720 Gbit/s can be obtained respectively for Pe=10-7 and Pe=10-9
Keywords :
asynchronous transfer mode; channel capacity; code division multiple access; diffraction gratings; electro-optical switches; encoding; high-speed optical techniques; integrated optoelectronics; light emitting diodes; optical fibre communication; optical interconnections; optical receivers; packet switching; telecommunication network routing; 720 Gbit/s; 840 Gbit/s; LED; amplitude spectral encoding; direct-detection receivers; light-emitting-diodes; low-cost broadband sources; nondispersive lens-grating apparatus; optical CDMA; optical interconnects; optical routing technique; orthogonality; performance calculations; spectral encoding; switch capacity; switch throughput; ultrafast ATM switching; Asynchronous transfer mode; Encoding; Light emitting diodes; Multiaccess communication; Optical interconnections; Optical receivers; Optical switches; Routing; Throughput; Ultrafast optics;
Conference_Titel :
Communications, 1994. ICC '94, SUPERCOMM/ICC '94, Conference Record, 'Serving Humanity Through Communications.' IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-1825-0
DOI :
10.1109/ICC.1994.368882
