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Publication

Photonic Integrated K-Band Microwave Oscillator Based on Silicon Nitride Soliton Microcomb

Tobias Kippenberg, Junqiu Liu, Maxim Karpov, Rui Ning Wang, Hairun Guo, Erwan Guillaume Albert Lucas, Arslan Sajid Raja, Jijun He, Guanhao Huang, Nils Johan Engelsen, Romain Dany Bruno Bouchand
2019
Conference Papers

Abstract

Using photonic integrated silicon nitride microresonators of quality factor exceeding 15 million, we demonstrate 19-GHz-repetition-rate single soliton with 35 mW optical power, and characterize the phase noise of the repetition rate in the K-band microwave regime. (c) 2019 The Author(s)

Official source

https://infoscience.epfl.ch/entities/publication/531f05a1-5915-4819-96cc-5c7b5b23a191

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Abstract

Official source

https://infoscience.epfl.ch/entities/publication/531f05a1-5915-4819-96cc-5c7b5b23a191

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Related concepts (12)

Noise reduction

Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio. All signal processing devices, both analog and digital, have traits that make them susceptible to noise.

Noise figure

Noise figure (NF) and noise factor (F) are figures of merit that indicate degradation of the signal-to-noise ratio (SNR) that is caused by components in a signal chain. These figures of merit are used to evaluate the performance of an amplifier or a radio receiver, with lower values indicating better performance. The noise factor is defined as the ratio of the output noise power of a device to the portion thereof attributable to thermal noise in the input termination at standard noise temperature T0 (usually 290 K).

Noise (signal processing)

In signal processing, noise is a general term for unwanted (and, in general, unknown) modifications that a signal may suffer during capture, storage, transmission, processing, or conversion. Sometimes the word is also used to mean signals that are random (unpredictable) and carry no useful information; even if they are not interfering with other signals or may have been introduced intentionally, as in comfort noise. Noise reduction, the recovery of the original signal from the noise-corrupted one, is a very common goal in the design of signal processing systems, especially filters.

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