1. 5 mu m RANGE InGaAsP/InP DISTRIBUTED FEEDBACK LASERS.

Kazuo Sakai, Katsuyuki Utaka, Shigeyuki Akiba, Yuichi Matsushima

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Abstract

Lasing characteristics of InGaAsP/InP distributed feedback (DFB) lasers in the 1. 5 mu m range were studied theoretically and experimentally. Wave propagation in five-layer DFB waveguides were analyzed to estimate the effect of the structural parameters on threshold conditions. A brief consideration on designing a low threshold laser and its lasing wavelength was made. DFB buried heterostructure lasers with fundamental grating emitting at 1. 53 mu m were prepared by liquid phase epitaxial techniques. CW operation was confirmed in the temperature range of minus 20 degree to 58 degree C, and a cw threshold current was as low as 50 mA at room temperature.

Original languageEnglish
Pages (from-to)1272-1278
Number of pages7
JournalIEEE Journal of Quantum Electronics
VolumeQE-18
Issue number8
Publication statusPublished - 1982 Aug
Externally publishedYes

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Sakai, K., Utaka, K., Akiba, S., & Matsushima, Y. (1982). 1. 5 mu m RANGE InGaAsP/InP DISTRIBUTED FEEDBACK LASERS. IEEE Journal of Quantum Electronics, QE-18(8), 1272-1278.