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首页> 外文期刊>Chinese Optics Letters >Offset quantum-well method for tunable distributed Bragg reflector lasers and electro-absorption modulated distributed feedback lasers
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Offset quantum-well method for tunable distributed Bragg reflector lasers and electro-absorption modulated distributed feedback lasers

机译:可调分布式布拉格反射器激光器和电吸收调制分布式反馈激光器的偏移量子阱方法

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摘要

A two-section offset quantum-well structure tunable laser with a tuning range of 7 nm was fabricated using offset quantum-well method. The distributed Bragg reflector (DBR) was realized just by selectively wet etching the multiquantum-well (MQW) layer above the quaternary lower waveguide. A threshold current of 32 mA and an output power of 9 mW at 100 mA were achieved. Furthermore, with this offset structure method, a distributed feedback (DFB) laser was integrated with an electro-absorption modulator (EAM), which was capable of producing 20 dB of optical extinction.
机译:使用偏移量子阱方法制造了调谐范围为7 nm的两段式偏移量子阱结构可调激光器。分布式布拉格反射器(DBR)仅通过选择性地湿蚀刻四元下部波导上方的多量子阱(MQW)层即可实现。在100 mA时达到32 mA的阈值电流和9 mW的输出功率。此外,通过这种偏移结构方法,将分布式反馈(DFB)激光器与电吸收调制器(EAM)集成在一起,该电吸收调制器能够产生20 dB的消光。

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