Department of Electrical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
Opt Lett. 2012 Feb 15;37(4):488-90. doi: 10.1364/OL.37.000488.
A photonic crystal (PhC) nanocavity formed in an optically very thick slab can support reasonably high-Q modes for lasing. Experimentally, we demonstrate room-temperature pulsed lasing operation from the PhC dipole mode emitting at 1324 nm, which is fabricated in an InGaAsP slab with thickness (T) of 606 nm. Numerical simulation reveals that when T≥800 nm, over 90% of the laser output power couples to the PhC slab modes, suggesting a new route toward an efficient in-plane laser for photonic integrated circuits.
光子晶体（PhC）纳米腔形成在光学上非常厚的平板中，可以支持相当高 Q 值的激光模式。实验上，我们演示了室温下从发射波长为 1324nm 的 PhC 偶极模式的脉冲激光运行，该模式是在厚度（T）为 606nm 的 InGaAsP 平板中制造的。数值模拟表明，当 T≥800nm 时，超过 90%的激光输出功率耦合到 PhC 平板模式中，这为光子集成电路中的高效面内激光提供了一条新途径。
