Exploiting shot noise correlations in the photodetection of ultrashort optical pulse trains

Quinlan, Franklyn; Fortier, Tara M.; Haifeng,; Hati, Archita; Nelson, Craig W.; Fu, Yang; Campbell, Joe C.; Diddams, Scott A.

doi:10.1038/nphoton.2013.33

Cited by 109 publications

(94 citation statements)

References 91 publications

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“…Using another device, both a higher RF power of 2.9 dBm (1.9 mW, no optical or RF amplification) and yet lower white-phase-noise floor of À 160 dBc/ Hz were obtained. These results are within 19 dB of the very lowest white-phase-noise floors recently demonstrated using highperformance frequency combs and high-power photodiodes 49 . Further details on this measurement as well as the power calculations themselves are provided in the Supplementary Note 2.…”

Section: Resultssupporting

confidence: 71%

Microwave synthesizer using an on-chip Brillouin oscillator

2013

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Low-phase-noise microwave oscillators are important to a wide range of subjects, including communications, radar and metrology. Photonic-based microwave-wave sources now provide record, close-to-carrier phase-noise performance, and compact sources using microcavities are available commercially. Photonics-based solutions address a challenging scaling problem in electronics, increasing attenuation with frequency. A second scaling challenge, however, is to maintain low phase noise in reduced form factor and even integrated systems. On this second front, there has been remarkable progress in the area of microcavity devices with large storage time (high optical quality factor). Here we report generation of highly coherent microwaves using a chip-based device that derives stability from high optical quality factor. The device has a record low electronic white-phase-noise floor for a microcavity-based oscillator and is used as the optical, voltage-controlled oscillator in the first demonstration of a photonic-based, microwave frequency synthesizer. The synthesizer performance is comparable to mid-range commercial devices.

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Section: Resultssupporting

confidence: 71%

Microwave synthesizer using an on-chip Brillouin oscillator

2013

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“…20,21 Third, fluctuations of the timing in a photocurrent peak (shot noise) can also limit the timing accuracy of photodetection. 9 In our experiments, the shot noise power is orders of magnitude below the thermal noise floor and is hence insignificant. Additional technical noise is introduced whenever high microwave power and hence amplification of the photodiode's signal is needed.…”

mentioning

confidence: 59%

“…6,9 With a given power P microwave of the electrical signal at a microwave frequency f microwave , the best possible root-mean-square timing jitter J of a system within a bandwidth Df is limited by 10…”

mentioning

confidence: 99%

Passive optical enhancement of laser-microwave synchronization

Gliserin

Walbran

Baum

2013

Applied Physics Letters

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Thermal noise is a fundamental limitation for synchronizing microwaves to high-power lasers of low repetition rate. Here, we describe an optical enhancement scheme that concentrates the output power of a fast photodiode into a narrow range of harmonics around a microwave frequency. The scheme is entirely passive and requires no feedback or lock. Using a 5-MHz laser and a microwave at 6.2 GHz, we demonstrate an enhancement of optical-to-microwave conversion by a factor of 4000. The uncorrelated noise on time scales up to 8 min amounts to less than 4 fs, with laser pulses intense enough for pump-probe experiments of structural dynamics.

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“…2.32 In the contrary case, these terms give rise to cyclostationary shot noise [156,157] -shot noise modulated at Ω IF -in excess of the expectation from a stationary shot noise model. It is generally true that cyclostationary noise may be represented as a sum of correlated stationary noise processes [158] -therefore, it is possible to coherently cancel excess cyclostationary shot noise [156,159,160], or use the correlations for benefit [161]. …”

Section: Detection Of Conjugate Quadratures: Heterodynementioning

confidence: 99%

Quantum Limits on Measurement and Control of a Mechanical Oscillator

Sudhir

2018

Springer Theses

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PAR Vivishek SUDHIR JOSEPH CONRAD, Heart of DarknessExperimental physics demands a certain degree of manual dexterity, the patience to tolerate the mundane, and an inexhaustible supply of optimism. Tobias hired me to work on an immensely sophisticated experiment despite any proof of my possessing these qualities; I am indebted to him for the belief he has placed in me. I would also like to acknowledge his dedication to fostering an environment where the pursuit of science is unencumbered by other worldly concerns. Stefan, Ewold and Samuel bore the brunt of a theorist trying to perform delicate experiments; the stern, yet encouraging, stewardship of this trio ensured that I enjoyed the culture shock. Dal Wilson was more than a colleague and a post-doc; his pragmatic approach to physics provided the ideal counter-point in our attempts to forge a deeper understanding of things ranging from vibration isolation to the subtleties of quantum mechanics. Without the patient efforts of Amir, Ryan and Hendrik in designing, fabricating, and testing of devices, none of the results reported here would have been possible. I hope I have been able to bequeath a better vision of the future of our experiment to Sergey. Conversations with Alexey, Daniel and Nathan have enabled me to vicariously learn how to measure microwave "photons". John Jost once taught me how to decorate a Christmas tree; since then he has imparted some wisdom on frequency metrology, and some on atomic physics. Together with Dal, Victor and Caroline have probably spent the most time with me outside the lab; it was fun to exercise an air of social normalcy with this bunch. Christophe has been an amazing sparring partner on every subject capable of being brought under scientific scrutiny.The personal space required for the pursuit of science comes through the sacrifice of many people. My family back home in India -parents, sister, grand-parents -have had to patiently wait for the brief interludes when I go home. No words can do justice to this and the very many other pleasures they have surrendered over the years for my sake. Before physics attracted me, I was charmed by someone else; I am lucky to have married her. Long time friends, mentorsAjith and Subeesh -have played pivotal roles in my being able to engage in physics; I hope to repay this enormous debt, some day.It was a privilege to have learnt from a few great teachers during my formative years. Their vision of an indelible unity in nature continues to motivate my study of physics. vii AbstractThe precision measurement of position has a long-standing tradition in physics. Cavendish's verification of the universal law of gravitation using a torsion pendulum, Perrin's confirmation of the atomic hypothesis via the precise measurement of the Brownian motion, and, the verification of the mechanical effect of electromagnetic radiation, all belong to this classical heritage. Quantum mechanics posits that the measurement of position results in an uncertain momentum; an idea developed to full maturity within the ...

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Exploiting shot noise correlations in the photodetection of ultrashort optical pulse trains

Cited by 109 publications

References 91 publications

Microwave synthesizer using an on-chip Brillouin oscillator

Microwave synthesizer using an on-chip Brillouin oscillator

Passive optical enhancement of laser-microwave synchronization

Quantum Limits on Measurement and Control of a Mechanical Oscillator

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