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We present an approach to all-optical demultiplexing of ultrafast Nyquist OTDM signals using four-wave mixing with a Nyquist gate. Our design does not suffer from the tradeoff between SNR and ISI of existing approaches.
We experimentally demonstrate coherent spectral phase encoded optical code-division multiple access that fully suppresses multiple access interference and speckle noise for the first time without the need for fast nonlinear time gating.
We show that a parametric frequency comb generated in a silicon-nitride resonator on-chip can be passively mode-locked to produce sub-200-fs pulses at a 99-GHz repetition rate.
We present a scalable approach to optical time division multiplexing using a time lens. With simply a single device we demonstrate direct TDM to WDM conversion. Data rates up to 1.28 Tb/s are realized.
We demonstrate broadband frequency comb generation from a single-frequency pump laser at 1 μm using parametric oscillation in a silicon nitride ring resonator. The comb spans 97 THz with a 230-GHz free spectral range.
We generate optical frequency combs spanning 75 THz with a 204-GHz spacing using parametric oscillation in an integrated silicon-nitride microring resonator. The comb spacing is uniform to better than 5.2×10−11 relative to the optical frequency.
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