Quantum model for electro-optical amplitude modulation

Quantum model for electro-optical amplitude modulation.

We present a quantum model for electro-optic amplitude modulation, which is built upon quantum models of the main photonic components that constitute the modulator, that is, the guided-wave beamsplitter and the electro-optic phase modulator and accounts for all the different available modulator structures. General models are developed both for single and dual drive configurations and specific r...

Correcting Unwanted Amplitude Modulation in Electro-optic Modulators

...............................................................................................1 Chapter 1: Gravitational Waves & LIGO.......................................................2 1.1 Gravitational Waves.....................................................................2 1.2 LIGO......................................................................................2 1.3 A Source of ...

Uncovering signals from measurement noise by electro mechanical amplitude modulation

We present an electromechanical parametric scheme to improve the low-frequency signal-to-noise ratio of energy buffering type transducers. The method is based on periodic modulation of the stiffness in the sensory system which produces upconverted replicas of the signals of interest at frequencies where measurement is less troubled by noise or other detrimental effects. We demonstrate this prin...

All-optical versus electro-optical quantum-limited feedback.

Dual Amplitude-Width Pulse Interval Modulation for Optical Wireless Communications

In this paper, a new modified digital pulse interval modulation called Dual Amplitude-Width Pulse Interval Modulation (DAWPIM) is presented, on the basis of Pulse Amplitude Modulation (PAM) and Pulse Width Modulation (PWM), and its properties are presented. After introducing symbol structure, data rate improvement, average normalized power requirement and bandwidth efficiency are studied. The p...