Thermoelectrically cooled THz quantum cascade laser operating up to 210 K

Abstract

We present a \MF{terahertz} quantum cascade laser operating on a thermoelectric cooler up to a record-high temperature of 210.5 K. The active region design is based on only two quantum wells and achieves high temperature operation thanks to a systematic optimization by means of a nonequilibrium Green's function model. Laser spectra were measured with a room temperature detector, making the whole setup cryogenic free. At low temperatures ($\sim 40 K), a maximum output power of 200 mW was measured.

References in corpus (2)

• Octave-spanning semiconductor laser
• Extraction-Controlled Quantum Cascade Lasers

Cited by in corpus (3)

• Direct observation of terahertz frequency comb generationin difference-frequency quantum cascade lasers
• An antipodal Vivaldi antenna for improved far-field properties and polarization manipulation of broadband terahertz quantum cascade lasers
• Photon-driven broadband emission and RF injection locking of THz quantum cascade laser frequency combs