Title :
Temporal/spatial optical CDMA networks-design, demonstration, and comparison with temporal networks
Author :
Park, Eugene ; Mendez, Antonio J. ; Garmire, Elsa M.
Abstract :
The design and experimental results for a temporal/spatial (T/S) noncoherent optical code-division multiple access (CDMA), based on matrix codes, using a breadboard of passive multimode fiber-optic couplers and delay lines, is presented. It is shown that a T/S CDMA network allows for shorter bit times, given a set laser pulse width, compared to a temporal CDMA network. Also, T/S codes result in a reduction of autocorrelation sidelobes and cross-correlation peaks, and the T/S network has lower losses. It is also shown that the couplers are critical components in maintaining code integrity.<>
Keywords :
code division multiple access; delay lines; optical couplers; optical fibres; optical links; optical losses; autocorrelation sidelobes; code integrity; couplers; cross-correlation peaks; delay lines; laser pulse width; losses; matrix codes; passive multimode fiber-optic couplers; temporal/spatial optical CDMA networks; Autocorrelation; Decoding; Delay lines; Fiber lasers; Multiaccess communication; Optical design; Optical fiber couplers; Optical fiber networks; Optical pulses; Space vector pulse width modulation;
Journal_Title :
Photonics Technology Letters, IEEE
