Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Limitations of Photonic Analogue to Digital Conversion Based on Passive Chirp of Ultra-Short Laser Pulses in Optical Fiber

Version 1 : Received: 10 November 2022 / Approved: 14 November 2022 / Online: 14 November 2022 (02:14:56 CET)

How to cite: Starikov, R.; Zlokazov, E.; Nebavskiy, V. Limitations of Photonic Analogue to Digital Conversion Based on Passive Chirp of Ultra-Short Laser Pulses in Optical Fiber. Preprints 2022, 2022110229. https://doi.org/10.20944/preprints202211.0229.v1 Starikov, R.; Zlokazov, E.; Nebavskiy, V. Limitations of Photonic Analogue to Digital Conversion Based on Passive Chirp of Ultra-Short Laser Pulses in Optical Fiber. Preprints 2022, 2022110229. https://doi.org/10.20944/preprints202211.0229.v1

Abstract

Application of pulsed optical sources on the base of stable mode-locked lasers, which are known for their very low time jitter, provides the opportunity for creation a high precision photonic analogue to digital converters of signals in the microwave range. However, the repetition rate of modern commercially available mode-locked lasers is limited to a few gigahertz. The increase of repetition rate is possible using the schemes that implement a passive chirp of ultra-short pulses prior to electro-optic amplitude modulator, which is driven by the signal under test, and demultiplexing of modulated signal after a modulator. In the given article we analyzed a continuous time-stretch chirp using single mode fiber as dispersive element. The limitations of input signal bandwidth and source pulses energy are considered.

Keywords

analog-to-digital converter; ENOB; photonic time-stretch; optical sampling; photonic sampling; photonic ADC

Subject

Physical Sciences, Optics and Photonics

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