Wideband four-wave-mixing wavelength converter

Details Wideband four-wave-mixing wavelength converter Wideband four-wave-mixing wavelength converter

2005-06-21

2005-06-21

Lee, John D. (Department: 2874)

Optical: systems and elements

Optical frequency converter

Parametric oscillator

C359S326000

Reexamination Certificate

active

06909534

ABSTRACT:
The present invention provides a wavelength converter with wideband four-wave-mixing, which includes a laser diode, an optical modulator, a first and a second polarization controllers, a first, a second and a third tunable lasers, an optical coupler, a semiconductor optical amplifier (SOA) and a multiplexer. The present invention utilizes an assist beam that can improve the recovery rate and saturation power of the SOA. While the SOA is operated at a bias current close to the transparent condition for the assist beam, it does not influence the gain of the SOA wavelength converter.

REFERENCES:
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patent: 2004/0184807 (2004-09-01), Aso et al.
Dar-Zu Hsu et. al.,High-efficiency and wideband SOA-based wavelength converters by using four-wave-mixing with orthogonal pumps and an assisted beam, Dec. 2003, Taiwan.
I. Tomkos et. al.,Performance of a Reconfigurable Wavelength Converter Based on Dual-Pump-Wave Mixing in a Semiconductor Optical Amplifier, IEEE Photonics Technology Letters, vol. 10, No. 10, pp. 1404-1406, Oct. 1998.
A. D'Ottavi et. al.,Wavelength Conversion at 10 Gb/s by Four-Wave Mixing Over a 30-nm Interval, IEEE Photonics Technology Letters, vol. 10, No. 7, pp. 952-954, Jul. 1998.
Trefor J. Morgan et. al.,All-Optical Wavelength Translation Over 80 nm at 2.5 Gb/s Using Four-Wave Mixing in a Semiconductor Optical Amplifier, IEEE Photonics Technology Letters, vol. 11, No. 8, pp. 982-984, Aug. 1999.

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