Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

1.55µm GaInAsP/InP Distributed Bragg Reflector Integrated Laser Directly Coupled to External Waveguide

Not Accessible

Your library or personal account may give you access

Abstract

The high-speed and ultra-long distance optical communication system can be obtained using 1.5-1.6µm wavelength region [1] if the light source with narrow dynamic spectral width is developed [2]. The lasers with periodic structure, for example DBR-ITG lasers can be operated in single longitudinal mode even under high-speed modulation condition [3]. In order to obtain high-quality DBR laser, it is important to realize highly efficient coupling between active region and DBR region which forms in a low-loss external waveguide. Various types of integrated lasers, namely, lasers with integrated external waveguide, have been studied thus far [4]. Direct-coupling integrated lasers reported in GaAs/AlGaAs system [5][7] have the advantage that the pure un-doped external waveguide can be obtained without disturbing the injection properties of the based wafer. In GaAs direct-coupling integrated lasers, coupling efficiencies were relatively low because the external waveguide structure was not optimized. However if the external waveguide is formed uniformly even at the joint with active layer, coupling efficiency of more than 90% is theoretically possible by the optimized external waveguide structure with relaxed fabrication-tolerance. It is, therefore, interesting to develop this type of GaInAsP/InP integrated laser.

© 1982 Optical Society of America

PDF Article
More Like This
Low threshold current GaInAsP/InP Integrated Twin Guide Lasers with Distributed Bragg Reflector emitting at 1.55µm

Fumio Koyama, Shigehisa Arai, Tawee Tanbun-Ek, Katsumi Kishino, and Yasuharu Suematsu
WB5 Integrated and Guided Wave Optics (IGWO) 1982

Rapid modulation characteristics of 1.5-1.6-µm GaInAsP/InP distributed-Bragg-reflector integrated twin-guide lasers

K. Utaka, K. Kobayashi, and Y. Suematsu
TUD5 Optical Fiber Communication Conference (OFC) 1981

GaInAsP/InP Double Heterostructure Laser with Monolithically Integrated Passive Waveguide

Z. L. Liau and J. N. Walpole
WB3 Integrated and Guided Wave Optics (IGWO) 1982

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved