Optically Tunable Long Wavelength Infrared Quantum Cascade Laser Operated at Room Temperature

Abstract

We demonstrate rapid tuning of the emission frequency of a room-temperature mid-infrared quantum cascade laser by external optical pumping. Emission frequency tuning over 0.3 cm(expn -1) (10GHz) has been achieved for a lambda = 9 micro m device by optical generation of electron-hole pairs along the entire length of the laser stripe. Measurements indicate that this approach allows for rapid broadband frequency-modulation of mid-infrared quantum cascade lasers at above 300MHz modulation frequencies.

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Document Details

Document Type
Technical Report
Publication Date
Jan 09, 2013
Accession Number
ADA573723

Entities

People

  • G. Belenky
  • M. A. Belkin
  • R. Tober
  • S. Jung
  • Sergey Suchalkin

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Distributed Feedback Lasers
  • Electron Holes
  • Electrons
  • Emission Spectra
  • Engineering
  • Frequency
  • Frequency Modulation
  • Lasers
  • Long Wavelengths
  • Long-Wavelength Infrared Radiation
  • Modulation
  • Optical Pumping
  • Quantum Cascade Lasers
  • Quantum Wells
  • Refractive Index
  • Semiconductor Lasers
  • Semiconductors

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Directed Energy
  • Microelectronics
  • Quantum Computing