Spectral behaviour of aged 1.55 μm λ/4-shifted dfb lasers

S. Akiba, Y. Matsushima, M. Usami, K. Utaka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Side-mode suppression ratio and main-mode wavelength were measured in the 3000 h life test of 1.55 μn λ/4-shifted InGaAsP/InP DFB lasers. Degradation of the single-wavelength property and the wavelength shift of the main mode were observed in lasers which showed relatively large degradation rates of about 10-4/h at 50°C. Indexing term: Semiconductor lasers.

Original languageEnglish
Pages (from-to)316-318
Number of pages3
JournalElectronics Letters
Issue number7
Publication statusPublished - 1987 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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