Title :
A simply tunable optical CDMA encoder/decoder for two-dimensional cyclic permutable codes
Author :
Chung, Seunghwan ; Lee, Chung-Keun ; Kim, Youngmin ; Lim, Yongjun ; Seo, Seung-Woo ; Lee, Byoungho
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
We propose a simply tunable optical codec using a cyclic wavelength shifter, which can be applied for two-dimensional optical CDMA (O-CDMA) schemes. The cyclic wavelength shifter is based on dual-band holographic grating. By using this device, it is easy to implement various optical CDMA codecs utilizing constant-weight cyclic-permutable codes. In this paper, the basic principle and the feasibility of the proposed device is demonstrated experimentally.
Keywords :
code division multiple access; codecs; cyclic codes; decoding; holographic gratings; optical communication equipment; optical fibre communication; optical tuning; cyclic wavelength shifter; dual-band holographic grating; encoder/decoder; optical CDMA; tunable optical codec; two-dimensional cyclic permutable codes; Arrayed waveguide gratings; Codecs; Decoding; Dual band; Fiber gratings; Holographic optical components; Holography; Multiaccess communication; Optical devices; Optical fiber devices;
Conference_Titel :
Optical Fiber Communication Conference, 2006 and the 2006 National Fiber Optic Engineers Conference. OFC 2006
Print_ISBN :
1-55752-803-9
DOI :
10.1109/OFC.2006.215545
