Single-Step Tunable Group Delay Phaser for Real-Time Spectrum Sniffing
Optics
2015-01-26 v1
Abstract
This paper presents a single-step tunable group delay phaser for spectrum sniffing. This device may be seen as a "time filter", where frequencies are suppressed by time separation rather than by spectral attenuation. Compared to its multiple-step counterpart, this phaser features higher processing resolution, greater simplicity, lower loss and better channel equalization, due to the smaller and channel-independent group delay swing. A three-channel example is provided for illustration.
Cite
@article{arxiv.1501.05750,
title = {Single-Step Tunable Group Delay Phaser for Real-Time Spectrum Sniffing},
author = {Tongfeng Guo and Qingfeng Zhang and Yifan Chen and Rui Wang and Christophe Caloz},
journal= {arXiv preprint arXiv:1501.05750},
year = {2015}
}