Optical mm-wave DWDM signal generation with photonic frequency quadruple by only one external modulator
✍ Scribed by Ying Li; Lin Chen; Shuangchun Wen; Dianyuan Fan
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 280 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
We have proposed a novel scheme to generate optical mm‐wave DWDM signals with four time frequency of the local oscillator by using only one external modulator. By incorporating the proper direct current (DC) bias on the external modulator to suppress the first order sideband in central office (CO), and using optical filtering technique to separate the optical mm‐wave and optical carrier in the base station, the dense wavelength division multiplexing (DWDM) optical millimeter‐wave (mm‐wave) signals are generated with four times frequency of the LO signal. We have experimentally demonstrated four‐channel DWDM optical mm‐wave signal generation with a repetitive frequency up to 40 GHz by 10 GHz LO, and down‐stream signal delivery over 20‐km fiber with 0.7‐dB power penalty. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1152–1155, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23328