Microwave characterization of Purcell enhancement in a microcavity laser
Journal
Applied Physics Letters
Journal Volume
96
Journal Issue
13
Date Issued
2010
Author(s)
Abstract
A sensitive microwave method is described to study the optical frequency response of a microcavity laser, demonstrating that a quantum-well vertical cavity surface-emitting laser (∼3 μm aperture, ITH=180 μA) can exhibit almost single mode operation (nearly threshold free), and an electron-hole spontaneous lifetime Purcell enhancement of 2.08 times. The microwavemeasurement method employing electrical-to-optical conversion, and distinct separation of electrical input and optical output, is more revealing than photoluminescence decay experiments (and the inconvenient overlap of optical input and output).
SDGs
Type
journal article