CHELMSFORD, Mass., July 26 -- Essco Calibration Laboratory, a full-service calibration and repair laboratory, announced that it has added fiber optic calibration services to their already extensive list of capabilities. This added capability makes Essco one of the first independent laboratories to support fiber optic test equipment. Fiber optic power meters, sources, attenuators, amplifiers, lightwave meters, OTDR’s, converters and optical spectrum analyzers can now be calibrated quickly and economically with the addition of the services. One week turnaround is standard and expedited service is offered as well.