Prototype Analogue Optohybrids for the CMS Outer Barrel and Endcap Tracker

Prototype analogue optohybrids have been designed and built for the CMS Tracker Outer Barrel and End Cap detectors. The total requirement for both types in CMS is 12900 that will be assembled between 2002 and 2004. Using very close to final optoelectronic and electronic components several optohybrids have been assembled and tested using standardised procedures very similar to those to be implemented during production. Analogue performance has met the specifications in all cases when operated in isolation and when inserted into the full prototype optical readout system.