Narrow-Spectral-Linewidth Wavelength-Tunable Laser Diode with Si Wire Waveguide Ring Resonators

被引：48

作者：

Nemoto, Keita ^{[1
]}

Kita, Tomohiro ^{[1
]}

Yamada, Hirohito ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Commun Engn, Sendai, Miyagi 9808579, Japan

来源：

APPLIED PHYSICS EXPRESS | 2012年 / 5卷 / 08期

基金：

日本学术振兴会;

关键词：

COMPACT; DEVICES;

D O I：

10.1143/APEX.5.082701

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We fabricated wavelength-tunable laser diodes with Si wire waveguide ring resonators as an external optical cavity. The footprint of the optical cavity including the semiconductor optical amplifier is as small as 2.73 x 0.89 mm(2), which is about 1/5 of those made of silicon oxinitride material. About 44-nm-wavelength tuning operation, which covers the entire L-band of the optical communication wavelength range, was obtained. Furthermore, spectral linewidth narrower than 100 kHz was obtained by optimizing the design of the external optical cavity. The tunable laser diodes with narrow spectral linewidth are suitable as light sources for digital coherent optical transmission systems. (C) 2012 The Japan Society of Applied Physics

引用

页数：3

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