Optical Single Sideband Modulation With Tunable Optical Carrier-to-Sideband Ratio

A novel approach to realize optical single sideband (OSSB) modulation with tunable optical carrier-to-sideband ratio (OCSR) is proposed and demonstrated based on cascaded polarization modulators (PolMs). In the proposed scheme, OSSB polarization modulation is first obtained by driving two cascaded P...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 26; no. 7; pp. 653 - 655
Main Authors Zhang, Yamei, Zhang, Fangzheng, Pan, Shilong
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2014
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Amplitude modulation
Microwave photonics
Optical fibers
Optical filters
Optical modulation
Optical polarization
polarization modulation
single sideband modulation
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Summary:A novel approach to realize optical single sideband (OSSB) modulation with tunable optical carrier-to-sideband ratio (OCSR) is proposed and demonstrated based on cascaded polarization modulators (PolMs). In the proposed scheme, OSSB polarization modulation is first obtained by driving two cascaded PolMs with two RF signals that are 90 ° out of phase. Then, by placing a polarizer after the PolMs, an OSSB-modulated signal with a tunable OCSR is obtained by adjusting the polarization direction of the polarizer. An experiment is carried out. An OSSB signal with a tunable OCSR from -26 to 46 dB is achieved. The operation bandwidth covers the frequency range of 5-35 GHz.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2014.2301893