Abstract
Novel square lattice photonic band gap lasers are realized at room temperature from single cell photonic crystal slab micro-cavities fabricated in InGaAsP materials emitting at 1.5 μm. This single cell photonic band gap laser operates in the new class of two-dimensional mode to be classified as the smallest possible whispering gallery mode with genuine energy null at the center. The low-loss nondegenerate mode with modal volume of 0.1 (λ/2)3 demonstrates a spectrometer-limited below-threshold quality factor > 2000 and a theoretical quality factor of > 10000. Threshold incident peak pump power of 0.8 mW is achieved from this whispering-gallery-type laser mode. The other class of photonic crystal lasers is also observed outside the photonic band gap of the square lattice, operating in the mode characteristically one-dimensional.
| Original language | English |
|---|---|
| Pages (from-to) | 173-180 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4655 |
| DOIs | |
| State | Published - 25 Apr 2002 |
| Externally published | Yes |
| Event | Photonic Bandgap Materials and Devices 2002 - San Jose, United States Duration: 19 Jan 2002 → 25 Jan 2002 |
Bibliographical note
Publisher Copyright:© 2002 SPIE.
Keywords
- InGaAsP
- Micro-cavity
- Photonic band gap
- Photonic crystal laser
- Single defect
- Whispering gallery mode