A brighter, lighter and healthier world
Home » Publications » Optimization of Single-mode photonic-crystal results in limited improvement of emitted power and unexpected broad range of tuning

Optimization of Single-mode photonic-crystal results in limited improvement of emitted power and unexpected broad range of tuning

Publication date 2013
B-Phot Authors Leszek Frasunkiewicz, Krassimir Panajotov
DOI 10.1109/JLT.2013.2247565
Citation
L. frasunkiewicz et al., “Optimization of  Single-mode photonic-crystal results in limited improvement of emitted power and unexpected broad range of tuning,” J. Lightwave Technol., vol. 31, no. 9, pp. 1360–1366, 2013.
Abstract This paper provides a numerical analysis of the influence of photonic crystal etching depth on the confinement factor, slope efficiency, emitted power and tuning range of single mode VCSELs. Several mechanisms were used to determine the level of power emission, namely: selective leakage, thermal focusing, the waveguide effect induced by the photonic-crystal, gain spectrum red shift, and its maximum reduction with the increase of driving currents. We show that careful design of the photonic crystal allows for a 10% increase in the emitted power of a single-mode regime and for a broad range of steering currents from 5 to 50mA. Such attributes support tuning of a single-mode emission beyond the 20 nm spectrum range.
B-PHOT cooperates with EYESTvzw for STEM-projects in Photonics
STEM

Click here for more information...

Contact

Hugo Thienpont
Prof. Dr. Ir.
Hugo Thienpont
Managing Director
Nadia Cornand

Nadia Cornand
Secretary
ncornand@b-phot.org
+32 2 791 68 52

How to reach B-Phot?

VUB - Campus Etterbeek
Pleinlaan 2
1050 Elsene
Building F - 9th floor

More info