SLHC抗辐射光链路
Radiation-Hard Optical Link for SLHC
摘要：
我们研究了基于当前像素光链路架构制作SLHC ATLAS硅跟踪器光链路的可行性。电流像素模块和光学模块之间的电信号通过微绞电缆传输。光学模块和数据采集系统之间的光信号通过抗辐射/低带宽SIMM光纤熔接到耐辐射/中带宽GRIN光纤进行传输。该链接有几个很好的功能。我们已经测量到的微双绞线电缆的带宽为~ 1Gb/s和熔接光纤带的带宽为~ 2Gb/s。我们用24 GeV质子辐照PIN和VCSEL阵列，发现阵列可以工作到SLHC剂量。我们还证明了一种新型的光封装外壳VCSEL和PIN阵列与BeO作为基板的可行性。
英文摘要：
We study the feasibility of fabricating an optical link for the SLHC ATLAS silicon tracker based on the current pixel optical link architecture. The electrical signals between the current pixel modules and the optical modules are transmitted via micro-twisted cables. The optical signals between the optical modules and the data acquisition system are transmitted via radiation-hard/low-bandwidth SIMM fibres fusion spliced to radiation-tolerant/medium-bandwidth GRIN fibres. The link has several nice features. We have measured the bandwidths of the micro twisted-pair cables to be ~ 1 Gb/s and the fusion spliced fibre ribbon to be ~ 2 Gb/s. We have irradiated PIN and VCSEL arrays with 24 GeV protons and find the arrays can operate up to the SLHC dosage. We have also demonstrated the feasibility of fabricating a novel opto-pack for housing VCSEL and PIN arrays with BeO as the substrate.
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