  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.

Instrumentation and Detectors