Optical wavelength division multiplexer/demultiplexer having preformed passively aligned optics

A wavelength division multiplexer and demultiplexer technology, applied in the field of optical communication, can solve the problems of reduced filtering accuracy, reduced filtering performance, attenuation, etc., and achieve the effect of minimizing optical loss
CN1790076AInactive Publication Date: 2006-06-21ORMON CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ORMON CORP
Publication Date
2006-06-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

An optical wavelength division multiplexer and de-multiplexer for single mode or multi-mode fiber optic communication systems is provided. The device includes in its preferred embodiment a prefabricated optical block having a reflective coating on its flat upper surface and a plurality of n filters carried on its flat lower surface. A molded plastic coupling module has a flat upper surface to which the optical block and filters are adhesively mounted and the coupling module also includes a lower surface having a plurality of n aspheric lenses. In the preferred embodiment, a fiber optic cable receptacle is molded to the coupling module along with a collimating lens and a beam reflector so that, when the components are assembled, the optical pathway is passively aligned and no postfabrication alignment adjusting or tuning is required.
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Description

[0001] This application is filed on June 13, 2000, with application number 00809807.7 (PCT / US00 / 16529), entitled "Optical Wavelength Division Multiplexer / Demultiplexer with Prefabricated Passive Alignment Optics" Divisional application of invention patent application. technical field

[0002] The present invention relates to optical communications. More precisely, the present invention relates to an optical multiplexing device with a passively aligned molded optical component to spatially disperse collimated multi-wavelength light from an optical fiber into individual wavelength bands. In a preferred embodiment, the improved multiplexing apparatus of the present invention is particularly suitable for wavelength division multiplexing systems for fiber optic data communication and radio communication systems. Background technique

[0003] In a wavelength division multiplexed optical communication system, many different optical wavelength carriers provide independent communica...

Claims

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