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Clock Recovery from 40 Gbps Optical Signal with Optical Phase-locked Loop based on a Terahertz Optical Asymmetric Demultiplexer
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- Authors
- Young Min Jhon, Ho Jin Ki, Sun Ho Kim
- Issue Date
- 2003-05
- Citation
- Optics Communications, v.220, no.4-6, pp.315-319
- ISSN
- 0030-4018
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- 10 GHz clock recovery from 40 Gbps optical time-division-multiplexed (OTDM) signal pulses is experimentally demonstrated using optical phase lock loop based on a terahertz optical asymmetric demultiplexer (TOAD) with a local-reference-oscillator-free electronic feedback circuit. The clock pulse that was used as the control pulse had energy of 800 fJ and the SNR of the time-extracted 10 GHz RF signal to the side components was larger than 40 dB.
- KSP Keywords
- 10 Ghz, Clock recovery(CR), Feedback circuits, Optical signal, RF signal, Terahertz optical asymmetric demultiplexer, lock loop(SOGI-FLL), optical phase lock loop, optical phase-locked loop, phase-locked loop(PLL)