40-Gb/s direct modulation with high extinction ratio operation of 1.3-μm InGaAlAs multiquantum well ridge waveguide distributed feedback lasers

被引：76
|
作者：
Nakahara, K. [1 ]
Tsuchiya, T.
Kitatani, T.
Shinoda, K.
Taniguchi, T.
Kikawa, T.
Aoki, M.
Mukaikubo, M.
机构：
[1] Hitachi Ltd, Cent Res Lab, Tokyo 1868601, Japan
[2] Opnext Japan Inc, Kanagawa 2448567, Japan
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2007年 / 19卷 / 17-20期
关键词：
distributed feedback (DFB) lasers; optical fiber communication; optical transmitters; ridge waveguide (RWG); semiconductor lasers;
D O I：
10.1109/LPT.2007.903530
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：
Direct modulation at 40 Gb/s of a 1.3-mu m InGaAlAs distributed feedback ridge waveguide laser is experimentally demonstrated. By combination of the high differential gain of an InGaAlAs multiquantum well active layer, a short cavity length of 100 mu m, and a low-resistance notch-free grating, it achieves high bandwidth of 29 GHz and high-extinction ratio of 5 dB at 40-Gb/s modulation. Moreover, the laser operates at a record maximum ambient temperature of 60 degrees C under 40-Gb/s directly modulation. It also achieves 40-Gb/s modulated transmission over 2 km with a low power penalty of 0.25 dB at 25 degrees C.
引用
收藏
页码：1436 / 1438
页数：3
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