Threshold current temperature dependence of quantum-dot photonic crystal surface-emitting lasers with respect to gain-cavity detuning

Ming Yang Hsu, Kuo-Jui Lin*, Zong Lin Li, Po Chou Pan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We investigate threshold current temperature dependence of electrically injected quantum-dot (QD) photonic crystal (PC) surface-emitting lasers (SELs) with respect to wavelength detuning between QD gain peak and PC cavity resonance. The lasing emissions cover wavelengths from 1283 nm to 1318 nm. Almost infinite characteristic temperature is realized at certain temperature range for PCSEL with large negative gain-cavity detuning. Moreover, band-edge lasing mode is identified in our “PC slab-on-substrate” structure, and its far-field distribution is characterized as doughnut-shaped beam with azimuthal polarization.

Original languageEnglish
Pages (from-to)13483-13488
Number of pages6
JournalOptics Express
Volume26
Issue number10
DOIs
StatePublished - 14 May 2018

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