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Sampling Continuous Time Signal

Sampling Continuous Time Signal

In signal processing, a continuous-time signal can be sampled using an impulse-train sampling technique, followed by the zero-order hold method. Impulse-train sampling involves the use of a periodic impulse train, which consists of a series of delta functions spaced at regular intervals determined by the sampling period. When a continuous-time signal is multiplied by this impulse train, it generates impulses with amplitudes corresponding to the signal's values at the sampling points.
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Related Experiment Video

Updated: Jun 5, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Manipulating supercontinuum generation by minute continuous wave.

Kim K Y Cheung¹, Chi Zhang, Yue Zhou

¹Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China.

|January 26, 2011

Summary

This summary is machine-generated.

A simple triggering mechanism enhances supercontinuum generation using weak continuous-wave (cw) light. This method stabilizes output and avoids complex controls, benefiting applications like all-optical signal processing.

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In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

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Published on: May 27, 2013

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Last Updated: Jun 5, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs

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Published on: June 8, 2018

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

Published on: May 27, 2013

Area of Science:

Nonlinear Optics
Quantum Optics

Background:

Supercontinuum generation is crucial for various applications.
Existing methods often require complex setups and precise control.

Purpose of the Study:

To introduce a simple triggering mechanism for enhancing supercontinuum generation.
To demonstrate a versatile approach for controlling and optimizing supercontinuum output.

Main Methods:

Utilizing an extremely weak continuous-wave (cw) light source to trigger the process.
Employing a wide range of input conditions without complex time delay tuning or feedback control.

Main Results:

Significant enhancement and stabilization of supercontinuum generation were achieved.
The technique proved effective across diverse input conditions.
Improved signal integrity in chirped pump optical parametric amplification was demonstrated.

Conclusions:

The developed triggering mechanism offers a simple, versatile, and effective method for supercontinuum generation.
This approach expands the applicability of supercontinuum generation in fields like ultrafast all-optical signal processing, spectroscopy, and imaging.