Wavelength superimposing device, manufacturing method...

Details Wavelength superimposing device, manufacturing method... Wavelength superimposing device, manufacturing method...

2007-01-19

2010-12-28

Vanderpuye, Ken N (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S084000, C398S083000, C398S082000, C398S087000

Reexamination Certificate

active

07860397

ABSTRACT:
The present invention is a wavelength superimposing device that can restrain a system scale and further reduce an optical transmission loss, while broadcasting a video signal light in a WDM network system, a manufacturing method therefor, and the WDM network system, and comprises a filter device that reflects some light of an input wavelength-multiplexed light in a direction different from an optical path direction of the input wavelength-multiplexed light and transmits a light of remaining wavelengths, a first optical system in which a reflected light reflected by the filter device is re-incident on a plurality of incident positions on a reflecting surface of the filter device, and a second optical system in which a transmitted light from the filter device is spectrally separated for each wavelength and each separated light is incident on the plurality of incident positions from a transmission surface of the filter device.

REFERENCES:
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patent: 7546036 (2009-06-01), Bouda et al.
patent: 7639946 (2009-12-01), Bouda
patent: 2004/0033014 (2004-02-01), Sasaki et al.
patent: 2008/0031625 (2008-02-01), Okuda et al.
patent: 2001-21741 (2001-01-01), None
patent: 2005-321487 (2005-11-01), None

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