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Effect of crystal thickness of separate confinement heterostructure layers on 1.55-μm loss-coupled dfb laser characteristics

✍ Scribed by Jae-Ho Han; Sung-Woong Park

Book ID
102121805
Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
342 KB
Volume
42
Category
Article
ISSN
0232-1300

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✦ Synopsis

Abstract

We investigated the effect of the crystal thickness of the separate confinement heterostructure (SCH) guiding layers on the characteristics (threshold current, quantum efficiency) of 1550‐nm loss‐coupled Distributed Feedback laser diode fabricated with a simple step growth having an automatically buried absorptive grating InAsP layer. By increasing the thickness of SCH crystal layers from 40‐nm to 80‐nm in both below and above the multi‐quantum well region, we could achieve lower threshold currents both in 25°C and 85°C with increased ratio of quantum efficiencies between two temperatures. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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✍ Jae-Ho Han; Sung-Woong Park 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 156 KB

## Abstract The authors achieved loss‐coupled 1.55 μm distributed feedback laser diode incorporating automatically buried absorptive layer implemented by a single step growth that simplifies device fabrication than those of conventional ones. Based on 2800 h of accelerated aging test, estimated lif