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A millimeter-wave (mmW) optoelectronic oscillator employing ultra-high Q optoelectronic hybrid bandpass filter is proposed. The novel filter with Q value of 30000, bandwidth of 1 MHz and centre frequency of 29.99 GHz has been demonstrated. Based on this ultra-narrow bandpass filter, a 29.99 GHz millimetre-wave signal is successfully generated with the single-sideband phase noise about −113 dBc/Hz...
A millimeter-wave optoelectronic oscillator with low phase noise and low spurs employing ultrahigh $Q$ optoelectronic hybrid band-pass filter is proposed. The 1-MHz pass-band filter in 29.99 GHz with $Q$ value of 30000 has been demonstrated. Based on this ultranarrow band-pass filter, a 29.99-GHz millimeter-wave signal with the spurious suppression ratio more than 83 dB is successfully generated...
We evaluate external cavity pulse compression of giant chirp oscillators and demonstrate third-order dispersion has limited influence on the minimum compressed pulsewidth. Furthermore, we propose an effective method to compress the pulse to transform-limited value.
A photonic approach for microwave frequency measurement was proposed based on incoherent microwave photonic filters. The fiber employed is short that performs good real-time response and the implementation owns the stability and tunable measurement range.
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