The Skillman system uses combinations of currents of four frequencies, 500, 600, 750 and 900 ~ per sec. for signalling and dialing over junctions and toll lines of any length and complexity.
A previous paper on digital computer simulation of a four-phase d a t a system 1 was concerned with performance in the presence of delay and attenuation distortion, and impulse noise.
A four-sideband stochastic analytical model is developed to investigate the impact of random fluctuations of the zero dispersion wavelength on two pump fiber-optic parametric processes.
We present a concept for colorless tunable optical dispersion compensators consisting of a series arrangement of generalized interferometers and adjustable lenses.
The electrical resistance of a conductor is intimately related to the relaxation of the momentum of charge carriers.
The generalized Schroedinger equation that governs wave propagation in a rapidly-spun fiber was derived in a previous report (ITD-06-46951J).
Parametric amplification is made possible by four-wave mixing. In low-birefringence fibers the polarization axes and birefringence strength vary randomly with distance.
We report what we believe to be the first experimental demonstration of nondegenerate four-wave mixing in a microstructure fiber.
We analyze four-wave mixing in negative refractive index media where at least one of the interacting waves has a negative index of refraction and explore some of the different perfectly phase match
We investigate efficiency of four-wave mixing (FWM) generation in quasi-distributed erbium-doped fiber (EDF) sections under general power evolution conditions.
