UWB signal generator using optical FSK modulator

Details UWB signal generator using optical FSK modulator UWB signal generator using optical FSK modulator

2005-01-21

2009-06-30

Curs, Nathan M (Department: 2613)

Optical communications

Transmitter

Having particular modulation

C385S002000, C359S245000

Reexamination Certificate

active

07555223

ABSTRACT:
A UWB signal generator includes: a laser light source for generating laser light, an optical intensity modulator for modulating an intensity of laser light from the laser light source, a signal source of the optical intensity modulator for outputting a signal transmitted to the optical intensity modulator, an optical frequency shift keying (optical FSK) modulator to which output light from the optical intensity modulator is input, a signal source for controlling a signal transmitted to an RFCelectrode of the optical FSK modulator, a high-frequency electric signal source for controlling a signal transmitted to an RFAelectrode and an RFBelectrode of the optical FSK modulator, and a high-speed photodetector for detecting an output from the optical FSK modulator.

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Kawanishi et al., Optical frequency shift by using optical SSB modulator, Technical Report of IEICE, vol. 103, No. 171, Jul. 2003, pp. 5-8.
Kawanishi et al., Analysis of Tunable Delay-Line Using an Optical Single-Sideband Modulator, IEICE Trans. Electron, vol. E86-C, No. 7, Jul. 2003, pp. 1230-1235.
Izutsu et al., Integrated Optical SSB Modulator/Frequency Shifter, IEEE Journal of Quantum Electronics, vol. QE-17, No. 11, Nov. 1981, pp. 2225-2227.
Higuma et al., X-cut lithium niobate optical single-sideband modulator, Electronics Letters, Apr. 12, 2001, vol. 37, No. 8, pp. 515-516.
Kawanishi et al., High-Speed Optical Modulators and Photonic Sideband Management, Laser Review, vol. 30, No. 10, 2002, pp. 576-580.
Office Action (Notice of Reasons for Rejection) issued in Japanese Appln. 2004-297901, dated Oct. 12, 2006 with Concise Explanation of Relevance.
Kawanishi, et al., Suppression of Optical Harmonics in Wavelength Conversion Using Optical Single-Sideband Modulator, OFC 2003, vol. 2, FP7, pp. 771-772, Published in English.
Kawanishi, et al., Optical frequency shift by using optical SSB modulator, Technical Report of IEICE, vol. 103, No. 171, Jul. 2003, pp. 5-8, Published in English.
Kawanishi, et al., Analysis of Tunable Delay-Line Using an Optical Single-Sideband Modulator, IEICE Trans. Electron., vol. E86-C, No. 7, Jul. 2003, pp. 1230-1235, Published in English.
Izutsu, et al., Integrated Optical SSB Modulator/Frequency Shifter, IEEE Journal of Quantum Electronics, vol. QE-17, No. 11, Nov. 1981, pp. 2225-2227, Published in English.
Higuma, et al., X-cut lithium niobate optical single-sideband modulator, Electronics Letters, Apr. 12, 2001, vol. 37, No. 8, pp. 515-516, Published in English.
Kawanishi, et al., High-Speed Optical Modulators and Photonic Sideband Management, Laser Review, vol. 30, No. 10, 2002, pp. 576-580.

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