Our mission is to increase the efficiency of the test & measurement process for our customers. Technology Optical power measurement for basic, precision, high power and specialty fiber optics - return loss measurement on ......Our mission is to increase the efficiency of the test & measurement process for our customers. Technology Optical power measurement for basic, precision, high power and specialty fiber optics - return loss measurement on singlemode and multimode connectors and components. Service & Support Technical staff with experience in the industry with an appreciation for the urgency of customer issues. With in-depth fiber optics experience dating back to the entrepreneurial years of Photodyne Inc. and RIFOCS Corp. OptoTest continues the rich tradition of breakthrough products and innovative solutions for the testing of fiber optics components and systems. Founded as a privately held company in Thousand Oaks, California, the OptoTest team pursues its vision to become a leading provider of Test Solutions for Fiber Optics supported by the strong brand of OptoTest™ products.