NASA Technical Reports Server (NTRS) 20020078356: Fiber Optic Attenuators PDF
Preview NASA Technical Reports Server (NTRS) 20020078356: Fiber Optic Attenuators
4 FIBER OPTIC ATTENUATORS 0n e of the routes by which many spinoff products are brought to the commercial a marketplace is personnel technology transfer, wherein an individual acquires a par- ticular skill or technological know-how in the course of his work as an employee of NASA or a NASA contractor, then moves to a new job or a new In 1990, Buzzetti was a device, negotiated an exclu- industry and applies that skill contract technician at JPL sive licensing agreement with or knowledge to a useful com- engaged in research on a California Institute of mercial product. An example very low noise Fiber Optic Technology, JPL's parent is the experience of Mike Distribution Assembly for organization, and started Buzzetti @elow), now presi- use in NASA's Deep Space Nanometer Technologies to dent and owner of Nanometer Network. In the course of this manufacture and market the Technologies, Santa Clarita, research, the JPL team dis- product, which has applica- California, who designed a covered that all of the fiber tions in cable television, tele fiber optic attenuator while optic attenuators tested phone networks, other signal working at NASA's Jet Propul- showed instability due to distribution networks, and sion Laboratory (JPL), sub- variations in temperature laboratory instrumentation. sequently commercialized and shock, and had too much Above are three units of the device and founded a back-reflection (reflected Nanometer's Model 2000 company to produce it. light in a fiber system). Test Series single mode fiber optic results were unacceptable. attenuators. By midyear Buzzetti then designed a 1995, the company had sold new, adjustable Rber optic more than 1,000 units. attenuator that utilizes bending loss to reduce the strength of the light transmit- ted along it. The attenuator functions without introduc- ing measurable back reflec- I tion or insertion loss, and it 121 is relatively insensitive to vibration and changes in INDUS IR IAL temperature. Buzzetti applied for and PRODUCTIVITY received a patent for the
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