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Novel 160-GHz wavelength converter based on a SOA and a long period grating |
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| Authors: | Aleš Kumpera Pavel Honzátko |
| Institution: | a Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Chaberská 57, 182 51, Prague 8, Czech Republic b Department of Telecommunications Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, 166 27, Prague 6, Czech Republic c CESNET a.l.e., Zikova 6, 166 27, Prague 6, Czech Republic |
| Abstract: | The proposed converter is based on cross-phase modulation (XPM) in a semiconductor optical amplifier (SOA). The predominantly phase-encoded signal at the SOA output is converted to a purely amplitude-modulated signal using a long period grating. First, we design the converter in terms of power conversion efficiency and pulse pedestal suppression. Subsequent analysis for the delayed-interference signal-wavelength converter (DISC) revealed that our device offers 5 dB higher power conversion efficiency and gives shorter pulses at the converter output. In the proof-of-principle experiment, good agreement with the theoretical predictions is obtained. |
| Keywords: | Optical frequency conversion Optical signal processing Optoelectronic devices |
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