【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 ref
【机 构】
：
National Research Center for Optoelectronic Technology, Institute of Semiconductors, Chinese Academy
【出 处】
：
Chinese Optics Letters
论文部分内容阅读
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.
The distributed Bragg reflector (DBR) was realized just by selectively wet etching the multi-quantum-well (MQW) layer above A quaternary lower waveguide. A threshold current of 32 mA and an output power of 9 mW at 100 mA were achieved. Further, 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.
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