24-GHz Directly Modulated DFB Laser Modules for Analog Applications

24-GHz Directly Modulated DFB Laser Modules for Analog Applications
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适用于模拟应用的 24GHz 直接调制 DFB 激光模块

DOI:
10.1109/lpt.2011.2179026
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发表时间:
2012-03
影响因子:
2.6
通讯作者:
Wang, Wei
Wang, Wei
中科院分区:
工程技术3区
文献类型:
--
作者:
Zhao, Ling Juan;Zhu, Hong Liang;Zhu, Ning Hua;Wang, Wei

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利用脊波导激光器芯片实现了直调分布反馈激光器模块。该激光器采用蝶形外壳封装,带K连接器,带宽高达24 GHz,带内平坦度为±3 dB。在24 GHz时,输入1 dB压缩点大于23 dBm,三阶交调截点为32.2 dBm,线性度良好。同时,在偏置电流为75 mA时,封装的DFB激光器模块的相对强度噪声小于-150 dB/Hz,在模拟光通信系统中显示出良好的性能。
A directly-modulated distributed-feedback laser module has been achieved with a ridge-waveguide laser chip in our laboratory. It is packaged in butterfly housing with a K connector, and the bandwidth of the laser module is up to 24 GHz with in-band flatness of ±3 dB. It shows a high linearity with input 1-dB compression point of higher than 23 dBm and third-order intercept of 32.2 dBm at 24 GHz. Meanwhile, the packaged DFB laser module gives rather low relative intensity noise of less than -150 dB/Hz when the bias current is 75 mA and it can show a great performance in analog optical communication systems.
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