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Integrated heterodyne terahertz transceiver

Patent ·
OSTI ID:1064643

A heterodyne terahertz transceiver comprises a quantum cascade laser that is integrated on-chip with a Schottky diode mixer. A terahertz signal can be received by an antenna connected to the mixer, an end facet or sidewall of the laser, or through a separate active section that can amplify the incident signal. The quantum cascade laser couples terahertz local oscillator power to the Schottky diode to mix with the received terahertz signal to provide an intermediate frequency output signal. The fully integrated transceiver optimizes power efficiency, sensitivity, compactness, and reliability. The transceiver can be used in compact, fieldable systems covering a wide variety of deployable applications not possible with existing technology.

Research Organization:
Sandia National Laboratories (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation
Patent Number(s):
8,274,058
Application Number:
US Patent Application 12/488,612
OSTI ID:
1064643
Country of Publication:
United States
Language:
English

References (9)

Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer journal June 2005
Surface plasmon photonic structures in terahertz quantum cascade lasers journal January 2006
Terahertz quantum cascade laser as local oscillator in a heterodyne receiver journal January 2005
Resonant-phonon-assisted THz quantum-cascade lasers with metal–metal waveguides journal June 2005
2.9THz quantum cascade lasers operating up to 70K in continuous wave journal September 2004
Terahertz semiconductor-heterostructure laser journal May 2002
Mode Calculations for a Terahertz Quantum Cascade Laser journal January 2004
Phase locking and spectral linewidth of a two-mode terahertz quantum cascade laser journal July 2006
Electromagnetic modeling of terahertz quantum cascade laser waveguides and resonators journal March 2005

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