| Title | True time delays using conversion/dispersion with flat magnitude response for wideband analog RF signals |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Yilmaz, O. F., L. Yaron, S. Khaleghi, R. M. Chitgarha, M. Tur, and A. Willner |
| Journal | Opt. Express |
| Pages | 8219–8227 |
| Date Published | Apr |
| 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. |
| URL | http://www.opticsexpress.org/abstract.cfm?URI=oe-20-8-8219 |
Salman Khaleghi
Publication 8 of 32
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