Design of hybrid micro-diffractive-refractive optical element with wide field of view for free space optical interconnections.
Design of hybrid micro-diffractive-refractive optical element with wide field of view for free space optical interconnections.
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DOI：
10.1364/oe.10.000540
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发表时间：
2002-07
期刊：
影响因子：
3.8
通讯作者：
Yongqi Fu;N. Bryan
中科院分区：
文献类型：
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作者：
Yongqi Fu;N. Bryan
提出了一种用于自由空间光互连的InGaAs/InP光电探测器背面集成80°宽视场混合微衍折透镜的新设计方案。在-20℃~70℃的环境温度变化范围内工作的光学系统具有明显的绝热优势，在环境温度范围内焦距变化仅为0.504 m，其光热膨胀系数与相应倒装芯片封装系统中使用的AuSn焊点的热膨胀系数相匹配。混合透镜是通过CODE-VTM专业软件设计的。结果表明，该透镜具有良好的光学性能，可用于光互连。
A new design is presented to achieve a hybrid micro-diffractiverefractive lens with wide field of view (WFOV) of 80 degrees integrated on backside of InGaAs / InP photodetector for free space optical interconnections. It has an apparent advantage of athermalization of optical system which working in large variation of ambient temperature ranging from -20 degrees C to 70 degrees C. The changing of focal length is only 0.504 m in the ambient temperature range with the hybrid microlens, which opto-thermal expansion coefficient matches with thermal expansion coefficient of AuSn solder bump used in corresponding flip-chip packaging system. The hybrid lens was designed via CODE-VTM professional software. The results show that the lens has good optical performance for the optical interconnection use.