Scientific Results

Lineshape and frequency noise of a Vertical Cavity Surface Emitting Laser

Year: 2000

Authors: Viciani S., Marin F.

Autors Affiliation: Dipartimento di Fisica, Università di Firenze, LENS, INFM Unità di Firenze, Firenze (FI), Italy

Abstract: Summary form only given. VCSELs are very original semiconductor lasers from different points of view, namely the short, high Q cavity; several transverse modes and gain guiding. with possible linewidth enhancement; different current injection mechanisms, for which the current noise can strongly influence the effective cavity length; strong thermal effects. For all these reasons, an accurate study of the frequency noise and of the lineshape of VCSELs is very interesting. We have performed such a study on a air-post VCSEL with an emission wavelength of 770 nm. We have recorded the lineshape at different injection current levels by heterodyne with a narrow linewidth extended cavity laser while the frequency noise spectrum is investigated using a Fabry-Perot cavity and frequency discriminator.

Conference title:

KeyWords: Cavity resonators; Electric currents; Laser resonators; Light polarization; Optical pumping, Fabry Perot cavities; Frequency noise; Vertical cavity surface emitting laser (VCSEL), Semiconductor lasers

This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more