Field experience with optical data links

A previous report on a high performance dc to 1 MHz analog fiber-optic telemetry link was developed especially for the neutral beam power supplies on the Tokamak Fusion Test Reactor (TFTR). This paper describes the field experience with that link. The field operation of the optical data links began in late 1983. The performance of this system as found to be exemplary. The testing of the overall neutral beam system was accelerated by the introduction of this specially developed electronics. The accuracy and stability of the telemetry, coupled with the remote calibration feature enabled the neutral beam system operators to concentrate on the development of the neutral beam system