Patent · US Active

Integration of a terahertz quantum cascade laser with a hollow waveguide

US8213476B1 · kind B1 · utility

11Cited by
4References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 25, 2010
Grant dateJul 3, 2012
Priority date—
Expiry dateSep 22, 2030

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01S2302/02
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

The present invention is directed to the integration of a quantum cascade laser with a hollow waveguide on a chip to improve both the beam pattern and manufacturability. By coupling the QCL output into a single-mode rectangular waveguide the radiation mode structure can be known and the propagation, manipulation, and broadcast of the QCL radiation can then be entirely controlled by well-established rectangular waveguide techniques. By controlling the impedance of the interface, enhanced functions, such as creating amplifiers, efficient coupling to external cavities, and increasing power output from metal-metal THz QCLs, are also enabled.

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