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arXiv 2202.04285physics.ins-det
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ATLAS液氩量热计第一阶段触发器升级的低延迟、小形状因子光链路组件原型

Component Prototypes towards a Low-Latency, Small-form-factor Optical Link for the ATLAS Liquid Argon Calorimeter Phase-I Trigger Upgrade

Binwei Deng, Mengxun He, Jinghong Chen, Datao Gong, Di Guo, Suen Hou, Xiaoting Li, Futian Liang, Chonghan Liu, Gang Liu, Ping-Kun Teng, Annie C Xiang, Tongye Xu… 展开作者

Binwei Deng, Mengxun He, Jinghong Chen, Datao Gong, Di Guo, Suen Hou, Xiaoting Li, Futian Liang, Chonghan Liu, Gang Liu, Ping-Kun Teng, Annie C Xiang, Tongye Xu, You Yang, Jingbo Ye, Xiandong Zhao, Tiankuan Liu

摘要:

本文介绍了几个组件原型的ATLAS液氩量热计第一阶段触发升级设计的低延迟,小形状因子的光链路。一个定制的双通道光发射器模块的原型,微型光发射器(MTx),与单独的发射器光学子组件(TOSA)已被证明在数据速率高达8 Gbps的每通道。一个垂直腔面发射激光器(VCSEL)驱动器ASIC已经开发出来,并用于目前的MTx原型。一个串行器ASIC原型,工作在每通道高达8 Gbps,已被设计和测试。一个低延迟,低开销的编码器ASIC原型的设计和测试。整个链路的延迟,包括发送器延迟和接收器延迟,但不包括光纤的延迟,估计小于57.9 ns。MTx的尺寸为45 mm x 15 mm x 6 mm。

英文摘要:

This paper presents several component prototypes towards a low-latency, small-form-factor optical link designed for the ATLAS Liquid Argon Calorimeter Phase-I trigger upgrade. A prototype of the custom-made dual-channel optical transmitter module, the Miniature optical Transmitter (MTx), with separate transmitter optical sub-assemblies (TOSAs) has been demonstrated at data rates up to 8 Gbps per channel. A Vertical-Cavity Surface-Emitting Laser (VCSEL) driver ASIC has been developed and is used in the current MTx prototypes. A serializer ASIC prototype, operating at up to 8 Gbps per channel, has been designed and tested. A low-latency, low-overhead encoder ASIC prototype has been designed and tested. The latency of the whole link, including the transmitter latency and the receiver latency but not the latency of the fiber, is estimated to be less than 57.9 ns. The size of the MTx is 45 mm x 15 mm x 6 mm.

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