Abstract

We demonstrate compression of ultrawideband (UWB) microwave arbitrary waveforms via phase-only matched filtering implemented in a programmable hyperfine resolution optical pulse shaper. We synthesize spread-time UWB electrical waveforms and utilize programmable microwave photonic phase filters to impose the opposite of a waveform's spectral phase on its spectrum. This enables us to compress an UWB microwave waveform to its corresponding bandwidth-limited pulse duration via phase filtering. As an example, we present compression of a linear frequency-modulated electrical waveform with {>}15 GHz frequency content with almost 200% fractional bandwidth with ~733 ps temporal window to a 40-ps duration pulse with more than 14-dB gain in peak power. Our technique is programmable and we believe it is applicable to a wide range of arbitrary spectral phase modulated UWB radio frequency (RF) waveforms.

© 2008 IEEE

Multitap microwave photonic filters with programmable phase response via optical frequency comb shaping

Minhyup Song, Victor Torres-Company, Andrew J. Metcalf, and Andrew M. Weiner
Opt. Lett. 37(5) 845-847 (2012)

Coherent Fourier transform electrical pulse shaping

Shijun Xiao and Andrew M. Weiner
Opt. Express 14(7) 3073-3082 (2006)

Compression of ultra-long microwave pulses using programmable microwave photonic phase filtering with > 100 complex-coefficient taps

Minhyup Song, Victor Torres-Company, Rui Wu, Andrew J. Metcalf, and Andrew M. Weiner
Opt. Express 22(6) 6329-6338 (2014)

Pair-by-pair pulse shaping for optical arbitrary waveform generation by dual-comb heterodyne

Xin Zhou, Xiaoping Zheng, He Wen, Hanyi Zhang, and Bingkun Zhou
Opt. Lett. 38(24) 5331-5333 (2013)

In-fiber reconfigurable generation of arbitrary (asymmetric) picosecond temporal intensity waveforms by time-domain optical pulse shaping

Jeonghyun Huh and José Azaña
Opt. Lett. 41(4) 693-696 (2016)