SSB phase noise, amplitude noise
, AM noise measurement, additive or residual noise characterization, and baseband noise measurements up to 6GHz can easily be made for sources such as crystal oscillators, PLL synthesizers, clocks, phase-locked VCOs, DROs, and many others.
Employing this technology, suppression of optical amplitude noise using a 107 gigabit per second (Gbps) phase modulated ultra high-speed signal was successfully verified.
Due to the fact that optical signals are more susceptible to optical amplitude noise as data transmission becomes faster and with greater data volume, there are significant limits to transmission distances that can be achieved.
Rather than concentrating on theory, practitioner Maas emphasizes real-world circuit performance, giving some background on phase and amplitude noise
as well as linear and nonlinear noise, then progressing to noise and random processes, including narrowband random processes, noise figure, noise temperature, and the system noise model, the noise theory of solid-state devices and of linear and nonlinear circuits, low-noise amplifiers, oscillators, and mixers and frequency multipliers.
Options are available for amplitude noise and measurement of phase and amplitude noise on pulsed signals.
The NXA is designed with a two-channel phase and amplitude noise analyzer using cross-correlation to cancel its own internal noise.
NIST recently completed a thorough study of the amplitude noise on supercontinua generated by injecting femtosecond laser pulses into microstructure fiber.
Fortunately, one result of this work is the determination that amplification of the shot noise is extremely dependent on the input pulse duration; for very short pulses of [approximately equal to] 30 fs or less, the broadband amplitude noise is reduced dramatically.
The DCNTS is a two-channel phase and amplitude noise
analyzer designed with a dual demodulator architecture that allows the test system to use cross-correlation to cancel its internal noise.
Full-spectrum total oscillator device noise analysis with phase and amplitude noise
This results in a dramatic reduction in time and amplitude noise