Monolithic vertical-cavity surface-emitting laser with thermally tunable birefringence

The birefringence splitting in vertical-cavity surface-emitting lasers offers an opportunity for spintronic-based high-frequency operation. By means of coupling of the carrier spin in the active region with the photons of the laser mode, the device can be excited to oscillations in the degree of cir...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters 2017-04, Vol.110 (15)
Main Authors: Pusch, Tobias, La Tona, Eros, Lindemann, Markus, Gerhardt, Nils C., Hofmann, Martin R., Michalzik, Rainer
Format: Article
Language:English
Subjects:
Active regions (lasers)
Applied physics
Birefringence
Circular polarization
Laser modes
Oscillations
Photons
Splitting
Tunable lasers
Vertical cavity surface emission lasers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The birefringence splitting in vertical-cavity surface-emitting lasers offers an opportunity for spintronic-based high-frequency operation. By means of coupling of the carrier spin in the active region with the photons of the laser mode, the device can be excited to oscillations in the degree of circular polarization with a frequency corresponding to the birefringence splitting. On-chip frequency tunability of those oscillations is desirable for future applications. By asymmetric current-induced heating using the elasto-optic effect, we demonstrate a reversible tuning of the birefringence splitting of 45 GHz with less than 3 dB output power penalty.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4980025