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Optical Network-on-Chip (NoC), offering the advantages of low energy consumption, high bandwidth, and low latency, is a promising solution for on-chip communications of multi-core systems. However, on-chip lasers, a key element in optical NoCs, are a dominant source of power consumption. In this paper, we propose dynamic laser power scaling (DLPS), a finegrained control strategy for minimizing laser...
We present 10-GHz ultra-broadband flat-topped optical frequency comb (> 3.64-THz within 3.5-dB power variation) based on seeding a highly nonlinear fiber with transform-limited Gaussian-shaped pulse from directly generated Gaussian-shaped comb.
We demonstrate bandwidth reconfigurable radio-frequency photonic filters based on optical frequency combs. By changing the comb bandwidth with a manually tunable RF attenuator, the filter bandwidth can be increased by the maximum of 112%.
Microwave photonic filters utilizing optical frequency combs have been shown to achieve narrow bandwidths, high stopband attenuation as well as easy tunability of center frequency and bandwidth. The ability to achieve smooth apodization of optical frequency comb spectrum to specific spectral profiles is important to obtain high stopband attenuations. Previously, by utilizing an optical pulse shaper...
We use intensity and phase modulators to develop a 10-GHz optical frequency comb whose shape can be easily switched between extremely flat-topped (38-lines within 1-dB) and Gaussian (36-lines over 15-dB dynamic range).
We present an optical frequency comb with, to the best of our knowledge, unprecedented flatness, high stability and a large number of spectral lines, which allows for high quality pulse compression using single mode fiber.
We demonstrate tunable programmable microwave photonic filters based on optical frequency combs. The utilization of optical comb enables to scale multi tap filters to large number of taps. By using optical line-by-line pulse shaping to program tap weights, we shape the filter's bandpass. In contrast to our previous work, we demonstrate a much simplified technique based on intensity modulator biased...
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