Patent · US Active

Method and apparatus for detecting multiple optical wavelengths

US7496257B2 · kind B2 · utility

17Cited by

16References

8Claims

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	Jan 9, 2008
Grant date	Feb 24, 2009
Priority date	—
Expiry date	Jan 9, 2028

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 to another, controllable gratings that operate on different wavelengths in response to external control signals.

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