Shunt current and excess temperature sensitivity of Ith and ηex in 1.3 μm InGaAsP DH lasers

Namizaki, H.; Hirano, Ryoichi; Higuchi, H.; Oomura, E.; Sakakibara, Yasushi; Susaki, W.

doi:10.1049/el:19820478

Cited by 16 publications

(1 citation statement)

References 4 publications

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“…The electrical characteristics of such a laser with a diode shunt path have been calculated. 35 The L-I signatures for pulsed operation have been calculated for the pnpn shunt alone, 36,37 and for the pnpn and diode paths simultaneously present. 38 Using credible values of the relevant parameters, the latter study 38 permits the conclusion that the dominant shunt current is / pn pn.…”

Section: High-current L-i Characterization-the Role Of Shunt Currentsmentioning

confidence: 99%

Implementation of the Proposed Reliability Assurance Strategy for an InGaAsP/InP, Planar Mesa, Buried Heterostructure Laser Operating at 1.3 μm for Use in a Submarine Cable

Nash

Sundburg

Hartman

et al. 1985

At&T Technical Journal

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We discuss the implementation of a strategy designed to provide laser-lightemitting reliability assurance for 1.3-μνα InGaAsP/lnP lasers of the planar mesa, buried heterostructure type for use in a submarine cable application. The testing regimes include initial characterization (cosmetic and light-current curve inspection), passive aging (elevated temperatures [85 to 175°C] without bias, with and without humidity [<85-percent relative humidity]), overstress active aging (high temperatures [150°C], high currents [250 mAdc]), and longterm rate-monitoring active aging (elevated temperature [60°C] burn-in [3 mW/facet]). Overstress testing is designed to compel a timely (~10 2 -hour) identification of premature failures, due to modes of degradation other than the long-term ultimately controlling wear-out mode, and to stabilize transient modes. To identify premature failures of the wear-out type, survivors of overstressing are subjected to rate monitoring in which wear-out degradation rates, established in a reasonable time (~10 3 hours), may be sorted. The principal results of the important overstress aging were the detection of an initially occurring saturable degradation mode, present to some extent in most lasers, and a regimen to force its rapid stabilization, so that it would not obscure determination of the activation energy of the wear-out mode. With a credibly determined value for the latter, it was deterministically inferred from * Authors are employees of AT&T Bell Laboratories.

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