论文信息 - Watt level performance of quantum cascade lasers in room temperature continuous wave operation at λ∼3.76 μm

Watt level performance of quantum cascade lasers in room temperature continuous wave operation at λ∼3.76 μm

An InP-based quantum cascade laser heterostructure emitting at 3.76 μm is grown with gas-source molecular beam epitaxy. The laser core is composed of strain balanced In0.76Ga0.24As/In0.26Al0.74As. Pulsed testing at room temperature exhibits a low threshold current density (1.5 kA/cm2) and high wall plug efficiency (10%). Room temperature continuous wave operation gives 6% wall plug efficiency with a maximum output power of 1.1 W. Continuous wave operation persists up to 95 °C.

[1] Manijeh Razeghi,et al. High-power CW quantum cascade lasers: How short can we go? , 2005, SPIE OPTO.

[2] Manijeh Razeghi,et al. Temperature dependent characteristics of λ∼3.8μm room-temperature continuous-wave quantum-cascade lasers , 2006 .

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

[4] Mykhaylo P. Semtsiv,et al. Intervalley carrier transfer in short-wavelength InP-based quantum-cascade laser , 2008 .

[5] Manijeh Razeghi,et al. Room temperature continuous wave operation of quantum cascade lasers with watt-level optical power , 2008 .

[6] Manijeh Razeghi,et al. Room temperature continuous wave operation of quantum cascade lasers with 12.5% wall plug efficiency , 2008 .

[7] William W. Bewley,et al. Mid-infrared interband cascade lasers operating at ambient temperatures , 2009 .

[8] Andrey B. Krysa,et al. High performance, high temperature λ≈3.7 μm InGaAs/AlAs(Sb) quantum cascade lasers , 2009 .

[9] M. Razeghi,et al. High-Performance InP-Based Mid-IR Quantum Cascade Lasers , 2009, IEEE Journal of Selected Topics in Quantum Electronics.

[10] Manijeh Razeghi,et al. High power quantum cascade lasers , 2009 .