Abstract
Vertical-cavity surface-emitting lasers (VCSELs) with two optically coupled but electrically isolated cavities form composite resonator vertical-cavity lasers (CRVCLs). These devices may lase at one of two wavelengths depending on the bias conditions to the two cavities and temperature. A model of the modal gain is presented, which explains the lasing wavelength at threshold based on the spatial and spectral overlap of the microcavity optical modes with the two gain regions.
Original language | English (US) |
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Pages (from-to) | 962-967 |
Number of pages | 6 |
Journal | IEEE Journal on Selected Topics in Quantum Electronics |
Volume | 11 |
Issue number | 5 |
DOIs | |
State | Published - Sep 2005 |
Keywords
- Composite resonator lasers
- Electrically isolated cavities
- Microcavity optical modes
- Modal gain model
- Optical coupling
- Spatial overlap
- Spectral overlap
- Surface-emitting lasers
- Threshold gain temperature dependence
- VCSEL
- Vertical-cavity lasers
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering