Quality control tests of the front-end optical link components for the ATLAS Liquid Argon Calorimeter Phase-1 upgrade
B. Deng, J. Thomas, L. Zhang, E. Baker, A. Barsallo, M.L. Bleile, C., Chen, I. Cohen, E. Cruda, J. Fang, N. Feng, D. Gong, S. Hou, X. Huang, T., Lozano-Brown, C. Liu, T. Liu, A. Muhammad, L.A. Murphy, P.M. Price, J.H. Ray,, C. Rhoades, A.H. Santhi, D. Sela, H. Sun, J. Wang
TL;DR
This paper details the quality control procedures and results for optical link components used in the ATLAS Liquid Argon Calorimeter upgrade, ensuring reliable high-speed data transmission in a particle physics experiment.
Contribution
It provides the first comprehensive quality control testing results for the optical components used in the ATLAS calorimeter upgrade, including yield analysis.
Findings
High qualification yields for MTx and MTRx modules.
Moderate yield for LOCld chips at 73.9%.
Overall successful qualification of thousands of optical components.
Abstract
We present the procedures and results of the quality control tests for the front-end optical link components in the ATLAS Liquid Argon Calorimeter Phase-1 upgrade. The components include a Vertical-Cavity Surface-Emitting Laser (VCSEL) driver ASIC LOCld, custom optical transmitter/transceiver modules MTx/MTRx, and a transmitter ASIC LOCx2. LOCld, MTx, and LOCx2 each contain two channels with the same structure, while MTRx has a transmitter channel and a receiver channel. Each channel is tested at 5.12 Gbps. A total of 5341 LOCld chips, 3275 MTx modules, 797 MTRx modules, and 3198 LOCx2 chips are qualified. The yields are 73.9%, 98.0%, 98.4%, and 61.9% for LOCld, LOCx2, MTx, and MTRx, respectively.
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