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Optical Engineering • Open Access

All-optical dual-wavelength conversion based on cross-polarization modulation and its application to format conversion from amplitude-shift keying to frequency-shift keying

Paper Abstract

Simultaneous noninverted and inverted dual-wavelength conversion is proposed and demonstrated by using a cross-polarization modulation effect in a semiconductor optical amplifier (SOA). Experiments show that noninverted and inverted conversions lead to power penalties of 1.3 dB and 0.8 dB, respectively, at a bit rate of 10 Gb/s. Based on this scheme, we have demonstrated, for the first time to our knowledge, an all-optical modulation format conversion from amplitude-shift keying (ASK) to frequency-shift keying (FSK). A frequency-shift keying signal with flexible tone spacing and high bit rate can be successfully generated by using this method.

Paper Details

Date Published: 1 August 2008
PDF: 3 pages
Opt. Eng. 47(8) 080501 doi: 10.1117/1.2965857
Published in: Optical Engineering Volume 47, Issue 8
Show Author Affiliations
Liuyan Han, Tsinghua Univ. (China)
He Wen, Tsinghua Univ. (China)
Hanyi Zhang, Tsinghua Univ. (China)


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