10-Gb/s external modulation in optical CPFSK format

We demonstrated a synchronous control technique for external optical modulation in a format of continuous-phase frequency-shift keying (CPFSK) at 10 Gb/s. In this method, the FSK signal in the upper- or lower-sideband state synchronously shifts to the other state at the timing when their phases are...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 18; no. 8; pp. 968 - 970
Main Authors Sakamoto, T., Kawanishi, T., Miyazaki, T., Izutsu, M.
Format Journal Article
LanguageEnglish
Published New York IEEE 15.04.2006
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Communication system control
Continuous-phase modulation
demodulation
Educational technology
electrooptic modulation
Format
Frequency modulation
Frequency shift keying
Modulation
Noise levels
optical fiber communication
Optical filters
Optical modulation
Optical receivers
Optical sensors
Phases
Photonics
Receivers
Synchronous
Time measurements
Timing
Universal Serial Bus
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Summary:We demonstrated a synchronous control technique for external optical modulation in a format of continuous-phase frequency-shift keying (CPFSK) at 10 Gb/s. In this method, the FSK signal in the upper- or lower-sideband state synchronously shifts to the other state at the timing when their phases are the same. We investigated the accuracy of the timing control required for the synchronous control. Experimental results show that the allowable timing misalignment to keep power penalty of the receiver sensitivity less than 1 dB was more than 25 ps, 25% of each bit period.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.873561