Wavelength division component integrated with distributed bragg gratings through co-optimization

Abstract

Here we incorporate waveguide filters into the design of wavelength division multiplexing (WDM) components. Conventionally, such designs are not considered because waveguide filters provide high back-reflection for any wavelengths they don't pass, and such back-reflections are typically intolerable. In this work, this back-reflection problem is alleviated by co-design of a WDM splitter and the waveguide filters such that the design of the WDM splitter accounts for the back-reflections provided by the waveguide filters. This can be regarded as a design that passively routes back-reflections at splitter outputs to the appropriate splitter outputs. Such designs can be obtained by numerical minimization of a cost function, e.g. a cost function that penalizes insertion loss and input back-reflection.

Description

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sunverressesoensannwnaavreroewnes cavnnseonsmaucn oexerseeocrace.

Claims

- c.omrmesno: o man a oonc comonen, e meo enn snc waveen s1,2, ...,N; ...,es sucnna waovreue ,erwsaven waveues1,2, an reNecsjor ¹ ueiransmsirsesorn ssee1,c2v,e.s..,Ne;ravn one s cownereurneororoue erwoavveeen -seecve s er io secon or ; o e rs or a s cownereurneorio roueac-ree waevceeonnsa-seecve s er secon ors oriirove o s. eemresoe os cneam,nuwmeerrecanoewmaveen -seecve anar ooncecnoo scaern szraucounreo. aassve a.ccouenmseoor oacc-raemec,wonereronm eenwuamveerucaeso mnzaon secon orsirove e waveue ersi. o a.ccouenmseoor o cam, weren e numerca o mzaon waveuesi. moe-macn eween secon orsian- .se meo o cam, werene numerca omzaon nsearseoon mnmzn a cosunconaenazeso ersnoosrs. a e seconors anac-reecon a w.aveeumeeo coomcam, werene waveue ern orrses- w.aveeumeeo o cam, werene waveue ernan reecs.nee- mseaoewoaveceanm, wvesreonn s or more, were a avn or more ouussrov mue.exn comonen^

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