Share Email Print
cover

Proceedings Paper

Tunable cyclic wavelength shifter by use of the polymer holographic grating for optical CDMA applications
Author(s): Byoungho Lee; Seunghwan Chung; Chung-Keun Lee; Youngmin Kim; Seunghoon Han; Yongjun Lim; Seung-Woo Seo
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Optical code division multiple access (O-CDMA) technique, which is considered as one of the most robust multiple-access techniques for future all-optical network has been studied in many groups. To make O-CDMA system more applicable for networks and switching, rapidly-tunable O-CDMA codes are required. The conventional coders have been reported including fiber Bragg gratings, arrayed-waveguide grating (AWG) devices and optical delay lines. And different types of CDMA coders are being proposed in many research groups. But among them, there are few coders which are freely tunable in real communication. In this paper, we propose an application of the polymer holographic grating as a tunable encoder or label swapper in O-CDMA systems. The polymer holographic grating can be an attractive approach to the spread-space, spread-spectrum CDMA systems or other combined types. The polymer holographic grating can be used for spreading and dispreading the energy of the information signal over a larger and smaller spatial domain in holographic or spread-space CDMA systems, which can be useful wireless optical communication systems. And also, it can be used in other types of CDMA systems. An application of the cyclic property of the proposed device will also be discussed.

Paper Details

Date Published: 8 September 2005
PDF: 11 pages
Proc. SPIE 5911, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XI, 591101 (8 September 2005); doi: 10.1117/12.615903
Show Author Affiliations
Byoungho Lee, Seoul National Univ. (South Korea)
Seunghwan Chung, Seoul National Univ. (South Korea)
Chung-Keun Lee, Seoul National Univ. (South Korea)
Youngmin Kim, Seoul National Univ. (South Korea)
Seunghoon Han, Seoul National Univ. (South Korea)
Yongjun Lim, Seoul National Univ. (South Korea)
Seung-Woo Seo, Seoul National Univ. (South Korea)


Published in SPIE Proceedings Vol. 5911:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications XI
Francis T. S. Yu; Ruyan Guo; Shizhuo Yin, Editor(s)

© SPIE. Terms of Use
Back to Top