Room-temperature, continuous-wave, single-mode quantum-cascade lasers at λ≃5.4μm

We demonstrate room-temperature, single-mode, continuous-wave operation of a λ≃5.4μm quantum-cascade laser up to the temperature of 30°C. Processing is done using standard lithography in a ridge waveguide mounted junction-up. The active region is based on a bound-to-continuum transition. The high performances were achieved with a low active region doping and a thick electroplated gold deposition, resulting in a characteristic temperature of T0=155K in continuous-wave with a threshold current density of jth=2.05kA∕cm2 at 300K.

[1]  A. Cho,et al.  High-resolution (Doppler-limited) spectroscopy using quantum-cascade distributed-feedback lasers. , 1998, Optics letters.

[2]  Carlo Sirtori,et al.  Short wavelength ( 3:4 m) quantum cascade laser based on strain-compensated InGaAs/AllnAs , 1998 .

[3]  Armin Lambrecht,et al.  Fast gas spectroscopy using pulsed quantum cascade lasers , 2003 .

[4]  M. Zahniser,et al.  Sub-part-per-billion detection of nitric oxide in air using a thermoelectrically cooled mid-infrared quantum cascade laser spectrometer , 2002 .

[5]  G. Strasser,et al.  Continuous-wave operation of distributed feedback AlAs/GaAs superlattice quantum-cascade lasers , 2000 .

[6]  Mattias Beck,et al.  Continuous-wave distributed-feedback quantum-cascade lasers on a Peltier cooler , 2003 .

[7]  Mattias Beck,et al.  Broadband tuning of external cavity bound-to-continuum quantum-cascade lasers , 2004 .

[8]  A. Kosterev,et al.  Chemical sensors based on quantum cascade lasers , 2002 .

[9]  Mattias Beck,et al.  Long-wavelength (λ≈16 μm), room-temperature, single-frequency quantum-cascade lasers based on a bound-to-continuum transition , 2001 .

[10]  Mattias Beck,et al.  Continuous Wave Operation of a Mid-Infrared Semiconductor Laser at Room Temperature , 2001, Science.

[11]  M. Beck,et al.  Bound-to-continuum and two-phonon resonance, quantum-cascade lasers for high duty cycle, high-temperature operation , 2002 .

[12]  Federico Capasso,et al.  Single-mode, tunable distributed-feedback and multiple-wavelength quantum cascade lasers , 2002 .

[13]  Manijeh Razeghi,et al.  High-temperature, high-power, continuous-wave operation of buried heterostructure quantum-cascade lasers , 2004 .

[14]  Mattias Beck,et al.  High-temperature operation of distributed feedback quantum-cascade lasers at 5.3 μm , 2001 .

[15]  Manijeh Razeghi,et al.  High-power continuous-wave operation of a 6 μm quantum-cascade laser at room temperature , 2003 .

[16]  M. Beck,et al.  Far infrared quantum-cascade lasers based on a bound-to-continuum transition , 2001, Conference on Lasers and Electro-Optics, 2003. CLEO '03..

[17]  R. Zare,et al.  Photoacoustic spectroscopy using quantum-cascade lasers. , 1999, Optics letters.

[18]  M. Beck,et al.  Photoacoustic spectroscopy with quantum cascade distributed-feedback lasers. , 2001, Optics letters.

[19]  A. Cho,et al.  Sensitive absorption spectroscopy with a room-temperature distributed-feedback quantum-cascade laser. , 1998, Optics letters.