Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1998-03-12
2000-10-03
Chan, Jason
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359117, 359127, H04B 1000, H04B 1002, H04J 1402
Patent
active
061281158
ABSTRACT:
An optical switch device includes an integrated space switch section and a wavelength switch section which reduces, a packaging volume and cost. The optical switch device includes a plurality of multi-functional wavelength converters. One of these converters includes a wavelength converter 121, in which an input terminal and an output terminal are connected to optical divider 131 and opticalcoupler 141, respectively, is operated as the wavelength converter only when a current flows through a semiconductor optical amplifier in the wavelength converter. When the current does not flow through the amplifier, the light is not outputted. By turning on/off the current flowing through the semiconductor optical amplifier in the wavelength converter, wavelength converter 121 can functions as a gate switch. The switch device has both of a wavelength conversion function and a space switch function. Wavelength converters 121-123 connected to one optical divider 131 are connected to different opticalcouplers 141-143, respectively, whereby the device can also have a wavelength multiplexing function.
REFERENCES:
patent: 5005166 (1991-04-01), Suzuki
patent: 5438445 (1995-08-01), Nakano
patent: 5627925 (1997-05-01), Alferness
patent: 5953142 (1999-09-01), Chiaroni et al.
Japanese Office Action, dated Nov. 24, 1998, with English language translation of Japanese Examiner's comments.
T. Shiragaki et al., "Optical Cross-Connect System Using Fixed-Wavelength Converters to Avoid Wavelength Blocking", First Optoelectronics and Communications Conference, Technical Digest, Jul. 1996.
S. Takahashi et al., "Space-Division Optical Cell Switching with 8.times.8 Gate Type Matrix Employing Gate Turn-on-Delay Compensator", 1996 International Topical Meeting on Photonics Switching Technical Digest, vol. 2, PthC 1, pp. 12-15, 1996.
Zhou, et al., "Four-Wave Mixing Wavelength Conversion Efficiency in Semiconductor Traveling-Wave Amplifiers Measured to 65nm of Wavelength Shift", IEEE Photonics Technology Letters, vol. 6, No. 8, Aug. 1994.
Marcenac et al., "Bandwith Enhancement of Wavelength Conversion Via Cross-Gain Modulation by Semiconductor Optical Amplifier Cascade", Electronics Letters, vol. 31, No. 17, Aug. 17, 1995.
Mikkelsen et al., "All-Optical Noise Reduction Capability of Interferometric Wavelength Converters", Electronics Letters, vol. 32, No. 6, Mar. 14, 1996.
Yasaka et al., "Broad-Range Wavelength Conversion of 10Gbit/s Ssignal Using a Superstructure Grating Distributed Bragg Reflector Laser", Electronics Letters, vol. 30, No. 2, Jan. 20, 1994.
Bello Agustin
Chan Jason
NEC Corporation
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