• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site

Article

Heat-sink free CW operation of injection microdisk lasers grown on Si substrate with emission wavelength beyond 13 μm

Optics Letters. 2017. Vol. 42. No. 17. P. 3319-3322.
Kryzhanovskaya N., Moiseev E., Polubavkina Y., Maximov M., Lipovskii A., Zhukov A. E.

High-performance injection microdisk (MD) lasers grown on Si substrate are demonstrated for the first time, to the best of our knowledge. Continuous-wave (CW) lasing in microlasers with diameters from 14 to 30 μm is achieved at room temperature. The minimal threshold current density of 600  A/cm2600  A/cm2 (room temperature, CW regime, heatsink-free uncooled operation) is comparable to that of high-quality MD lasers on GaAs substrates. Microlasers on silicon emit in the wavelength range of 1320–1350 nm via the ground state transition of InAs/InGaAs/GaAs quantum dots. The high stability of the lasing wavelength (𝑑𝜆/𝑑𝐼=0.1  nm/mAdλ/dI=0.1  nm/mA) and the low specific thermal resistance of 4×10−3°C×cm2/W4×10−3°C×cm2/W are demonstrated.