Optical band splitter/combiner and apparatus comprising the same

Matteo Cherchi (Inventor)

Research output: PatentResearch

Abstract

An optical device for splitting/combining a first and a second continuous optical wavelength bands, each wider than 10 nm, has a first, a second, a third, a fourth and a fifth optical splitting devices optically coupled in cascade and a first, a second, a third and a fourth optical differential delay devices optically coupled to, and interleaved between, the optical splitting devices. A suitable choice of the coupling angles of the splitting devices and of the differential delays of the optical differential delay devices gives to the structure flattened passbands and stopbands and makes the optical device tolerant to fluctuations of the structural parameters. An apparatus includes the optical device for use in fiber-to-the-premises networks.

Original languageEnglish
Patent numberUS2009034968 A1
IPCH04J14/02
Priority date21/06/04
Publication statusPublished - 5 Feb 2009
MoE publication typeNot Eligible

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Cherchi, M. (2009). IPC No. H04J14/02. Optical band splitter/combiner and apparatus comprising the same. (Patent No. US2009034968 A1).
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Cherchi, M 2009, Optical band splitter/combiner and apparatus comprising the same, Patent No. US2009034968 A1, IPC No. H04J14/02.

Optical band splitter/combiner and apparatus comprising the same. / Cherchi, Matteo (Inventor).

IPC No.: H04J14/02. Patent No.: US2009034968 A1.

Research output: PatentResearch

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AB - An optical device for splitting/combining a first and a second continuous optical wavelength bands, each wider than 10 nm, has a first, a second, a third, a fourth and a fifth optical splitting devices optically coupled in cascade and a first, a second, a third and a fourth optical differential delay devices optically coupled to, and interleaved between, the optical splitting devices. A suitable choice of the coupling angles of the splitting devices and of the differential delays of the optical differential delay devices gives to the structure flattened passbands and stopbands and makes the optical device tolerant to fluctuations of the structural parameters. An apparatus includes the optical device for use in fiber-to-the-premises networks.

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