Patent · US Active

Ultralow loss cavities and waveguides scattering loss cancellation

US8625939B1 · kind B1 · utility

8Cited by
6References
15Claims
0Family size

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Inventor

Key dates

Filing dateNov 29, 2011
Grant dateJan 7, 2014
Priority date—
Expiry dateMay 11, 2032

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/1225
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A waveguide system includes a first waveguide having surface roughness along at least one surface and a second waveguide substantially identical to the first waveguide and having substantially identical surface roughness along a corresponding side. The first and second waveguides are separated from each other by a predetermined distance and are configured to receive respective first and second light signals having antisymmetric modes. The predetermined distance between the first and second waveguide tends to cause cancellation of at least far-field polarization radiation emanating from the first and second waveguides and resulting from the surface roughness.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.