Code-selective RF photonic mixing for use in optical CDMA demultiplexers

Author

Narasimha, Adithyaram ; Yablonovitch, Eli

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

257

Abstract

We demonstrate a technique that coherently frequency shifts a direct sequence encoded optical channel by mixing it with an identically encoded RF local oscillator in a dual-electrode Mach Zehnder modulator (DE-MZM). The spectral separation would reduce the effects of cumulative shot noise and speckle, and full code orthogonality is possible since the bipolar nature of the optical field is recognized by the frequency shifting process

Keywords

code division multiple access; demultiplexing equipment; electro-optical modulation; electrodes; encoding; microwave photonics; optical communication equipment; shot noise; speckle; telecommunication channels; code-selective RF photonic mixing; coherently frequency shifts; cumulative shot noise; direct sequence encoded optical channel; dual-electrode Mach Zehnder modulator; frequency shifting process; full code orthogonality; identically encoded RF local oscillator; optical CDMA demultiplexers; optical field; speckle; spectral separation; Adaptive optics; Delay; Multiaccess communication; Optical devices; Optical fiber networks; Optical mixing; Optical modulation; Optical noise; Radio frequency; Spectral analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE

Conference_Location

San Diego, CA

ISSN

1092-8081

Print_ISBN

0-7803-7105-4

Type

conf

DOI

10.1109/LEOS.2001.969272

Filename

969272