Patent · US Active

Method and apparatus for detecting multiple optical wave lengths

US8311377B2 · kind B2 · utility

4Cited by

22References

28Claims

0Family size

Assignee

Brown University Research Foundation · US

Inventors

Daniel Levner · Brookline, US
Martin F. Fay · Providence, US
Jingming Xu · Schreiber, CA

Key dates

Filing date	Sep 19, 2011
Grant date	Nov 13, 2012
Priority date	—
Expiry date	Sep 19, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/58
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Optical gratings that perform a number of functions at various wavelengths are formed by various methods that preserve spectral information within a wavelength band, the functions including: coupling radiation from one waveguide (7a3) to another (7a2), controllable gratings that operate on different wavelengths in response to external control signals.

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