Precompensation Techniques to Suppress the Thermally Induced Wavelength Drift in Tunable DBR Lasers

被引：9

作者：

Darvish, Ghafar ^{[2
,3
]}

Moravvej-Farshi, Mohammad Kazem ^{[1
]}

Zarifkar, Abbas ^{[4
]}

Saghafi, Kamyar ^{[5
]}

机构：

[1] Tarbiat Modares Univ, Dept Elect & Comp Engn, Adv Device Simulat Lab, Tehran 1411713116, Iran

[2] Islamic Azad Univ, Dept Elect Engn, Tehran 1477893855, Iran

[3] Islamic Azad Univ, Res Branch, Tehran 1477893855, Iran

[4] Iran Telecommun Res Ctr, Tehran 1439955471, Iran

[5] Shahed Univ, Dept Elect Engn, Tehran 18155159, Iran

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 2008年 / 44卷 / 9-10期

关键词：

Distributed Bragg reflector (DBR) lasers; precompensation technique; thermal effects; tunable semiconductor laser; wavelength-division multiplexing (WDM); wavelength drift;

D O I：

10.1109/JQE.2008.2001303

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：

Wavelength drift caused by thermal transients is a major problem in optical routers which use semiconductor tunable lasers for packet switching. Wavelength drift is induced by the temperature variations in laser sections caused by switching of the tuning currents. A thermal model is used to analyze the optical frequency drifts due to the thermal characteristics of the laser chip and its mount. We investigate the impact of thermal effects on switching behavior of a three-section distributed Bragg reflector laser and show numerically that the wavelength drift can be counteracted by using precompensation of passive section currents. Results from numerical simulation show that the wavelength drifts can be suppressed by more than 80%.

引用

页码：958 / 965

页数：8

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