Patent · US Expired

Light transmitting modules with optical power monitoring

US7165896B2 · kind B2 · utility

11Cited by

18References

13Claims

0Family size

Assignee

Hymite A/S · DK

Inventors

Ralf Hauffe · Berlin, DE
Arnd Kilian · Berlin, DE

Key dates

Filing date	Feb 12, 2004
Grant date	Jan 23, 2007
Priority date	—
Expiry date	Aug 19, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/856
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optical module, such as a package for a vertical cavity surface emitting laser diode (VCSEL) or other light emitting device, includes monitoring of the emitted optical power by tapping the transmitted beam. The module includes a substrate, which carries the light emitting device and an optical monitor. In addition, the module includes a transparent plate with at least two reflective regions that together redirect part of the light from the light emitting device to the optical monitor.

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