SHORT-CAVITY DISTRIBUTED BRAGG REFLECTOR LASER WITH AN INTEGRATED TAPERED OUTPUT WAVE-GUIDE

被引：22

作者：

CHIEN, M ^{[1
]}

KOREN, U ^{[1
]}

KOCH, TL ^{[1
]}

MILLER, BI ^{[1
]}

ORON, M ^{[1
]}

YOUNG, MG ^{[1
]}

DEMIGUEL, JL ^{[1
]}

机构：

[1] TELEFON I&D,MADRID,SPAIN

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1991年 / 3卷 / 05期

关键词：

Lenses--Applications - Optical Fibers--Applications - Quantum Theory--Applications - Waveguides; Optical;

D O I：

10.1109/68.93864

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We demonstrate a distributed Bragg reflector strained-layer multiple-quantum-well laser at 1.5-mu-m wavelength with an integrated tapered waveguide beam expander. The far-field FWHM's in the lateral and vertical directions are 10 and 15-degrees, respectively. A quantum efficiency of 17% out the tapered facet was measured with a corresponding threshold current of 28 mA. The alignment tolerances for coupling into a cleaved single-mode fiber are 9.5 and 7.5-mu-m FWHM in the lateral and vertical directions, respectively. We obtained a 3-dB improvement for single-mode fiber coupling using a SELFOC lens.

引用

页码：418 / 420

页数：3