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We report on high temperature stability of a near-1.5 µm laser synthesized on an InP (001) substrate. Self-organized InAs quantum dots capped with a thin GaAs layer were used as an active region of the laser. An InGaAsP quaternary alloy having the bandgap energy of 1.15 eV was utilized as a waveguiding/matrix layer. A high characteristic temperature of the threshold current of T0 = 205 K, evaluated in the temperature range of 20−50◦C, was achieved in ridge waveguide laser diodes. A correlation of T0 values with the bandgap energy of the waveguiding layer was found.
Original languageRussian
JournalTechnical Physics
Issue number10
Pages (from-to)1382-1386
Publication statusPublished - 2017
CitationsWeb of Science® Times Cited: No match on DOI

ID: 139329212