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 language | English |
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Pages (from-to) | 8219-8227 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 20 |
Issue number | 8 |
DOIs | |
State | Published - 9 Apr 2012 |