Optical Square-Wave Clock Generation Based on an All-Optical Flip-Flop
Journal Article
·
· IEEE Photonics Technology Letters
We demonstrate optical square-wave clock generation based on an all-optical flip-flop. The bistable output power from a resonant-type semiconductor optical amplifier (SOA) is switched ON and OFF by modulating its input with its output via cross-gain modulation in a traveling-wave SOA. All active components are driven by dc currents, and the wavelength and clock frequency are selectable. A clock frequency of 3.5 MHz is demonstrated, limited by the time of flight between bulk optical components. Optical square-wave clock signals are promising for applications in photonic integrated circuits and all-optical signal processing.
- Research Organization:
- Univ. of Rochester, NY (United States). Lab. for Laser Energetics
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC52-08NA28302
- OSTI ID:
- 973201
- Report Number(s):
- DOE/NA/28302-934; 2009-84; 1916
- Journal Information:
- IEEE Photonics Technology Letters, Vol. 22, Issue 7
- Country of Publication:
- United States
- Language:
- English
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