Title :
Fiber optic frequency transfer link
Author :
Primas, L. ; Lutes, G. ; Sydnor, R.
Author_Institution :
Jet Propulsion Lab., Pasadena, CA, USA
Abstract :
A stabilized fiber-optic reference frequency distribution system has been fabricated and tested. The distribution system is designed to transmit a 100-MHz reference signal, which is generated by a hydrogen maser frequency standard, over a distance of 22 km. The goal is to maintain a stability of 1 part in 1017 for 1000-s averaging times. The stabilizer circuitry reduced delay variations that result from the effect environmental changes, such as temperature, on the fiber. The distribution system was designed using a computer simulation program that allows the delays, bandwidths, gains and damping factors to be varied for optimum performance. A breadboard version of the stabilizer was fabricated and tested in an environmentally controlled test chamber. In preliminary tests, the stabilizer reduced phase variations caused by temperature changes of 20°C by as much as 45 times
Keywords :
CAD; digital simulation; frequency stability; measurement standards; optical fibres; optical links; telecommunications computing; 100 MHz; 22 km; H; bandwidths; computer simulation program; damping factors; delay variations; delays; distribution system; environmental changes; environmentally controlled test chamber; fiber-optic reference frequency distribution; gains; measurement standards; optimum performance; reference signal; stabilizer circuitry; temperature; Circuit testing; Frequency; Hydrogen; Masers; Optical fiber testing; Optical fibers; Signal design; Signal generators; System testing; Temperature;
Conference_Titel :
Frequency Control Symposium, 1988., Proceedings of the 42nd Annual
Conference_Location :
Baltimore, MD
DOI :
10.1109/FREQ.1988.27643
