Yz. Huang et al., Analysis of semiconductor microlasers with an equilateral triangle resonator by rate equations, IEEE J Q EL, 37(10), 2001, pp. 1259-1264
Semiconductor microlasers with an equilateral triangle resonator (ETR) are
analyzed by rate equations with the mode lifetimes calculated by the finite
-difference time-domain technique and the Pade approximation. A gain spectr
um based on the relation of the gain spectrum and the spontaneous emission
spectrum is proposed for considering the mode selection in a wide wavelengt
h span. For an ETR microlaser with the side length of about 5 mum, we find
that single fundamental mode operation at about 1.55 mum can be obtained as
the side length increases from 4.75 to 5.05 mum. The corresponding wavelen
gth tuning range is 93 nm, and the threshold current is about 0.1 to 0.4 mA
.