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This paper presents a novel time-interleaving digital-to-analogue converter architecture. Optical pulses sample the analog output of electrical converters and then combine them using an optical multiplexer. Since sampling and time alignment are superior in optical domain, doubling the current state-of-the-art performance is expected.
We numerically investigate the Kerr comb generation in wavelengths around 2 micrometers where two photon absorption is still present. It is shown that optical comb generation and mode locking is possible if free carriers are swept out with a reversed bias PIN junction.
Using numerical simulations, we show that microresonator-based Kerr frequency combs with low pump power and non-filled spectrum can have a low noise level and high power efficiency. Therefore, they are reasonable candidates for WDM sources.
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