True time delays using conversion/dispersion with flat magnitude response for wideband analog RF signals

Omer F. Yilmaz*, Lior Yaron, Salman Khaleghi, M. Reza Chitgarha, Moshe Tur, Alan Willner

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

13 Scopus citations

Abstract

We demonstrate optical true time delays using wavelength conversion coupled with chromatic dispersion. The transfer function of the delay system is investigated, and it is shown that 3-dB bandwidth of the system can be increased over 40 GHz by using offset pumps. A flat magnitude response (<1 dB peak-peak, 0.2 dB RMS deviation) is achieved in the 1-30 GHz band. Calculated matched filter output to LFM pulses shows good performance, maintaining a > 30 dB peak-to-sidelobe-ratio. The effect of pump depletion during wavelength conversion is also investigated.

Original languageEnglish
Pages (from-to)8219-8227
Number of pages9
JournalOptics Express
Volume20
Issue number8
DOIs
StatePublished - 9 Apr 2012

Fingerprint

Dive into the research topics of 'True time delays using conversion/dispersion with flat magnitude response for wideband analog RF signals'. Together they form a unique fingerprint.

Cite this