Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
1998-07-17
2001-10-23
Chan, Jason (Department: 2633)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C359S199200, C385S037000
Reexamination Certificate
active
06307657
ABSTRACT:
TECHNICAL FIELD
This invention relates generally to the field of optical communications and in particular to an opto-mechanical platform suitable for Wavelength-Division-Multiplexed optical communications applications.
BACKGROUND OF THE INVENTION
Wavelength division multiplexing (WDM) has been shown as a promising approach for increasing the capacity of existing fiber optic networks. A communications system employing WDM uses plural optical signal channels, each channel being assigned a particular channel wavelength. In such a WDM system, optical signal channels are generated, multiplexed to form an optical signal comprised of the individual optical signal channels, transmitted over a single waveguide, and demultiplexed such that each channel wavelength is individually routed to a designated receiver.
The significance WDM communications systems and networks is immense. Consequently, a continuing need exists for apparatus and techniques that facilitate its continued implementation and adoption.
SUMMARY OF THE INVENTION
An advance is made over the prior art in accordance with the principles of the present invention which is directed to an opto-mechanical platform for WDM components.
Viewed from one aspect, the present invention is directed to an optomechanical platform that provides both precise alignment and ready manufacture of optical and optomechanical components. Specifically, a simplified embodiment of the invention includes a substantially symmetric cylindrical tube with an optical device at one end of the tube, a grating at another, opposite end of the tube and optics disposed between.
Viewed from another aspect, the present invention is directed to a method for fabricating the optomechanical platform. The method advantageously provides ready manufacture and ease of alignment of the of the components.
Viewed from yet another aspect, the present invention is directed to an integrated optomechanical/optoelectronic device that is particularly well suited to WDM and imaging applications.
REFERENCES:
patent: 6011884 (2000-01-01), Dueck et al.
Chan Jason
Leung Christina Y
Lin Reitseng
Lucent Technologies - Inc.
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