  The integration of a Verticle Cavity Surface-Emitting Laser (VCSEL) array and
a driving Application-Specific Integrated Circuit (ASIC) in a custom optical
array transmitter module (ATx) for operation in the detector front-end is
constructed, assembled and tested. The ATx provides 12 parallel channels with
each channel operating at 10 Gbps. The optical transmitter eye diagram passes
the eye mask and the bit-error rate (BER) less than 1E-12 transmission is
achieved at 10 Gbps/ch. The overall insertion loss including the radiation
induced attenuation is sufficiently low to meet the proposed link budget
requirement.
