Skip to main content

Adaptive non-uniform photonic time stretch for blind RF signal detection with compressed time-bandwidth product

Mididoddi, Chaitanya K, Wang, Chao (2017) Adaptive non-uniform photonic time stretch for blind RF signal detection with compressed time-bandwidth product. Optics Communications, 396 . pp. 221-227. ISSN 0030-4018. (doi:10.1016/j.optcom.2017.03.052) (KAR id:61044)

PDF Author's Accepted Manuscript
Language: English
Download (565kB) Preview
[thumbnail of LC-1838_accepted.pdf]
This file may not be suitable for users of assistive technology.
Request an accessible format
Official URL


Photonic time stretch significantly extends the effective bandwidth of existing analog-to-digital convertors by slowing down the input high-speed RF signals. Non-uniform photonic time stretch further enables time bandwidth product reduction in RF signal detection by selectively stretching high-frequency features more. However, it requires the prior knowledge of spectral-temporal distribution of the input RF signal and has to reconfigure the time stretch filter for different RF input signals. Here we propose for the first time an adaptive non-uniform photonic time stretch method based on microwave photonics pre-stretching that achieves blind detection of high-speed RF signals with reduced time bandwidth product. Non-uniform photonic time stretch using both quadratic and cubic group delay response has been demonstrated and time bandwidth product compression ratios of 72% and 56% have been achieved respectively.

Item Type: Article
DOI/Identification number: 10.1016/j.optcom.2017.03.052
Uncontrolled keywords: Analog to digital conversion, data compression, dispersion, microwave photonics, photonic time stretch, time bandwidth product
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications > TK5103.59 Optical communications
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Chao Wang
Date Deposited: 24 Mar 2017 22:33 UTC
Last Modified: 16 Feb 2021 13:44 UTC
Resource URI: (The current URI for this page, for reference purposes)
Wang, Chao:
  • Depositors only (login required):


Downloads per month over past year