论文信息 - Room temperature continuous wave operation of quantum cascade lasers with watt-level optical power

Room temperature continuous wave operation of quantum cascade lasers with watt-level optical power

We demonstrate quantum cascade lasers at an emitting wavelength of 4.6μm, which are capable of room temperature, high power continuous wave (cw) operation. Buried ridge geometry with a width of 9.8μm was utilized. A device with a 3mm cavity length that was epilayer-down bonded on a diamond submount exhibited a maximum output power of 1.3W at room temperature in cw operation. The maximum output power at 80K was measured to be 4W, with a wall plug efficiency of 27%.

[1] Mattias Beck,et al. Doping in quantum cascade lasers. I. InAlAs–InGaAs∕InP midinfrared devices , 2006 .

[2] Manijeh Razeghi,et al. Continuous-wave operation of λ∼4.8μm quantum-cascade lasersat room temperature , 2004 .

[3] Peter Werle,et al. A review of recent advances in semiconductor laser based gas monitors , 1998 .

[4] Federico Capasso,et al. Near-field imaging of quantum cascade laser transverse modes. , 2007, Optics express.

[5] Geoffrey Duxbury,et al. Quantum cascade semiconductor infrared and far-infrared lasers: from trace gas sensing to non-linear optics. , 2005, Chemical Society reviews.

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

[7] Deborah L. Sivco,et al. Quantitative gas sensing by backscatter-absorption measurements of a pseudorandom code modulated λ ∼ 8-µm quantum cascade laser , 2000 .

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

[9] Manijeh Razeghi,et al. Buried heterostructure quantum cascade lasers with high continuous-wave wall plug efficiency , 2007 .

[10] Manu Prasanna,et al. High-sensitivity detection of TNT , 2006, Proceedings of the National Academy of Sciences.

[11] Manijeh Razeghi,et al. Recent advances in high power mid- and far-wavelength infrared lasers for free space communication , 2006, SPIE Optics East.