Single lateral mode mid-infrared laser diode using wavelength-scale modulation of the facet reflectivity

G R Nash, Jamie L Stokes, J R Pugh, S Przeslak, P J Heard, J G Rarity, M J Cryan

Research output: Contribution to journalArticle (Academic Journal)peer-review

10 Citations (Scopus)

Abstract

The characteristics of mid-infrared laser diodes have been investigated before and after the patterning of wavelength-scale metallic apertures on the emitting facet. Before modification of the facet, the emitted spectrum consisted of a large number of peaks associated with different spatial modes, whereas afterwards, the spectrum was dominated by a single peak. Simulations showed that the patterning of the facet caused the effective reflectivity to be different for each lateral mode, suggesting that the peak in the measured spectra is associated with the single lateral mode which is most strongly reflected from the modified facet.
Translated title of the contributionSingle lateral mode mid-infrared laser diode using wavelength-scale modulation of the facet reflectivity
Original languageEnglish
Pages (from-to)011103-1 - 011103-3
Number of pages3
JournalApplied Physics Letters
Volume100
Issue number1
DOIs
Publication statusPublished - Jan 2012

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