Narrow-Linewidth Tunable Lasers With Retro-Reflective External Cavity

被引：10

作者：

Wang, Ning ^{[1
]}

Feng, Ming ^{[2
]}

Feng, Zhiqing ^{[3
]}

Lam, Man Ying ^{[1
]}

Gao, Lei ^{[4
]}

Chen, Bo ^{[4
]}

Liu, A. Q. ^{[5
]}

Tsang, Yuen Hong ^{[1
]}

Zhang, Xuming ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China

[2] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

[3] Dalian Nationalities Univ, Dept Phys, Dalian 116600, Peoples R China

[4] Huawei Technol Ltd Co, Shenzhen 25536, Peoples R China

[5] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 18期

关键词：

Digital coherent communications; external cavity tunable laser; laser tuning; narrow linewidth;

D O I：

10.1109/LPT.2012.2210200

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：

This letter presents the development of a fiber-pigtailed narrow-linewidth tunable laser that utilizes a retro-reflective optical system to construct the external cavity. For wavelength selection, a fixed etalon is employed to provide the International Telecommunication Union (ITU) grid with the 50-GHz spacing and a lead zirconate titanate-actuated tunable filter to select one ITU mode to resonate. The laser device measures a linewidth of 7 kHz, an output power of 14 dBm, a sidemode suppression ratio (SMSR) >55 dB, a tuning range >40 nm, and a response speed similar to 2 ms. The superior performance well demonstrates the advantages of external cavity construction for the narrow-linewidth tunable lasers and may find applications in the emerging digital coherent communications.

引用

页码：1591 / 1593

页数：3

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