The threshold current I//t//h of a 1. 5 mu m range InGaAsP/InP lambda /4-shifted DFB laser with low-reflectivity ends was theoretically expected to be 10 ma or less. Experimentally, I//t//h of 14-16 ma at 20 degree C and the sub-mode suppression ratio of about 35 db or more in the temperature range of 10-70 degree C were obtained.
|Number of pages||4|
|Journal||Transactions of the Institute of Electronics and Communication Engineers of Japan. Section E|
|Publication status||Published - 1986 Apr 1|
|Event||Pap from 1986 Natl Conv IECE Jpn - Niigata, Jpn|
Duration: 1986 Mar 23 → 1986 Mar 26
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