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Patent Searching and Data


Title:
OPTICAL SIGNAL PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2006/104250
Kind Code:
A1
Abstract:
There is provided an optical signal processing device having an arbitrary filter characteristic for incoherent light and can change the signal processing characteristic in accordance with the input signal having a temporal fluctuation. In one filter circuit, the device modifies a circuit parameter in time series as the time elapses so as to have a predetermined desired signal processing characteristic. The optical signal processing device includes: an input side light separator for branching the input optical signal into predetermined two directions; a spatial optical modulator for respectively modulating the input optical signals separated by the input side light separator and directly advancing in different directions, according to respective electric signals; a light collector for collecting an optical signal which has been modulated by the spatial optical modulator; an optical signal quantization device for quantizing the input optical signal and/or output optical signal; and a controller for controlling the spatial optical modulator so that the modulation actually applied to the input optical signal approaches the predetermined target characteristic according to the optical signal quantized by the optical signal quantization device.

Inventors:
SHIKATANI MOTOKAZU (JP)
Application Number:
PCT/JP2006/307163
Publication Date:
October 05, 2006
Filing Date:
March 29, 2006
Export Citation:
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Assignee:
NAT INST INF & COMM TECH (JP)
SHIKATANI MOTOKAZU (JP)
International Classes:
G02F1/01; H04B10/27; H04B10/29; H04B10/516; H04B10/54; H04B10/588; H04B10/61
Foreign References:
JP2001337301A2001-12-07
JPH09218305A1997-08-19
JPS61205926A1986-09-12
Attorney, Agent or Firm:
Fukuda, Kenzo (6-13 Nishishinbashi 1-chome, Minato-k, Tokyo 03, JP)
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