This paper discusses the operation of an oxide-confined vertical-cavity surface-emitting laser (VCSEL) featuring a submicroampere threshold current. Several measurements including polarization, linewidth, optical beam profile, and light-current characteristics confirm that the device is operating as a laser at currents less than 1 μA. Spectroscopic and far-field measurements are used to analyze the laser's modal structure and operation.
|Original language||English (US)|
|Number of pages||2|
|Journal||Conference on Quantum Electronics and Laser Science (QELS) - Technical Digest Series|
|State||Published - 1996|
ASJC Scopus subject areas
- Physics and Astronomy(all)