Abstract
In this paper we focus on the impact of planar microcavity structures on the spontaneous emission times and bandwidths of light emitting diodes (LEDs). We compare microcavity and non-microcavity devices and show that the light extraction is ten times more efficient for the microcavity devices, while the small-signal modulation bandwidth remains unchanged. Bandwidths in excess of 1 GHz are obtained. The power-bandwidth figure of merit for the microcavity devices is thus of the order of ten times greater than for the non-microcavity devices. The role of photon-recycling on the bandwidth is investigated. It is found that no major reduction in the bandwidth occurs due to recycling for devices up to 85 μm in diameter.
| Original language | English |
|---|---|
| Pages (from-to) | 182-189 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 3611 |
| DOIs | |
| Publication status | Published - 1999 |
| Externally published | Yes |
| Event | Proceedings of the 1999 Laser Resonators II - San Jose, CA, USA Duration: 27 Jan 1999 → 29 Jan 1999 |
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