Coherent optical link over hundreds of metres and hundreds of terahertz with subfemtosecond timing jitter

Coddington, Ian; Swann, William C.; Lorini, L.; Bergquist, J. C.; Coq, Yann Le; Oates, C. W.; Quraishi, Qudsia; Feder, K.; Nicholson, J.W.; Westbrook, Paul S.; Diddams, Scott A.; Newbury, Nathan R.

doi:10.1038/nphoton.2007.71

Cited by 109 publications

(69 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the right we have a comparison of this work with previous bounds. These bounds show up as frequency noise [13], timing error [5], and phase noise [4].…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A new bound on excess frequency noise in second harmonic generation in PPKTP at the 10^−19 level

Yeaton-Massey¹,

Adhikari²

2012

Opt. Express

View full text Add to dashboard Cite

Abstract:We report a bound on the relative frequency fluctuations in nonlinear second harmonic generation. A 1064 nm Nd:YAG laser is used to read out the phase of a Mach-Zehnder interferometer while PPKTP, a nonlinear crystal, is placed in each arm to generate second harmonic light. By comparing the arm length difference of the Mach Zehnder as read out by the fundamental 1064 nm light, and its second harmonic at 532 nm, we can bound the excess frequency noise introduced in the harmonic generation process. We report an amplitude spectral density of frequency noise with total RMS frequency deviation of 3 mHz and a minimum value of 20 µHz/Hz 1/2 over 250 seconds with a measurement bandwidth of 128 Hz, corresponding to an Allan deviation of 10 −19 at 20 seconds.

show abstract

“…On the right we have a comparison of this work with previous bounds. These bounds show up as frequency noise [13], timing error [5], and phase noise [4].…”

Section: Methodsmentioning

confidence: 99%

“…These include iodine stabilized Nd:YAG lasers [3], optical frequency combs [4,5], measurement of optical frequency ratios [2,6], and precision atomic spectroscopy [7]. Many of these experiments provide bounds to any excess frequency noise which might be found in the second harmonic generation (SHG) process (e.g.…”

Section: Introductionmentioning

confidence: 99%

A new bound on excess frequency noise in second harmonic generation in PPKTP at the 10^−19 level

Yeaton-Massey¹,

Adhikari²

2012

Opt. Express

View full text Add to dashboard Cite

show abstract

“…There is currently an active area of research aiming at the transmission of frequency references over large distances in optical fibers, in order to synchronize or compare remote opticalfrequency atomic clocks (Coddington et al, 2007;Foreman et al, 2007b;Musha et al, 2008;Newbury et al, 2007). In this case, the phase noise in the fiber link directly translates into a spectral broadening of the frequency reference.…”

Section: F Quantum Channelsmentioning

confidence: 99%

Quantum repeaters based on atomic ensembles and linear optics

et al. 2011

View full text Add to dashboard Cite

The distribution of quantum states over long distances is limited by photon loss. Straightforward amplification as in classical telecommunications is not an option in quantum communication because of the no-cloning theorem. This problem could be overcome by implementing quantum repeater protocols, which create long-distance entanglement from shorter-distance entanglement via entanglement swapping. Such protocols require the capacity to create entanglement in a heralded fashion, to store it in quantum memories, and to swap it. One attractive general strategy for realizing quantum repeaters is based on the use of atomic ensembles as quantum memories, in combination with linear optical techniques and photon counting to perform all required operations. Here we review the theoretical and experimental status quo of this very active field. We compare the potential of different approaches quantitatively, with a focus on the most immediate goal of outperforming the direct transmission of photons.

show abstract

“…It is crucial for the dissemination of high-precision time and frequency standards over long distances [80][81][82][83][84][85][86]. The emergence of optical atomic clocks and frequency standards necessitates a means for distributing not only the traditional microwave time and frequency information but also the optical information.…”

Section: Attosecond-precision Timing Distribution To Remote Locationsmentioning

confidence: 99%

Attosecond‐precision ultrafast photonics

Kim

Kärtner

2010

Laser & Photonics Reviews

View full text Add to dashboard Cite

We review our recent progress toward attosecondprecision ultrafast photonics based on ultra-low timing jitter optical pulse trains from mode-locked lasers. In femtosecond mode-locked lasers, the concentration of a large number of photons in an extremely short pulse duration enables the scaling of timing jitter into the attosecond regime. To characterize such jitter levels, we developed new attosecond-resolution measurement techniques and show that standard fiber lasers can achieve sub-fs high-frequency jitter. By leveraging the ultralow jitter of free-running mode-locked lasers, we pursued highprecision optical-optical and optical-microwave synchronization techniques. Optical signals spanning 1.5 octaves were synthesized by attosecond-precision timing and phase synchronization of two independent mode-locked lasers. High-stability microwave signals were also synthesized from mode-locked lasers with drift-free sub-10-fs precision. We further demonstrated the attosecond-precision distribution of optical pulse trains to remote locations via timing-stabilized fiber links. Finally, the application of optical pulse trains for high-resolution sampling and analog-to-digital conversion is discussed.The ultra-low timing jitter of optical pulse trains from femtosecond mode-locked lasers can be used for the attosecond-precision generation, distribution, measurement, and synchronization of optical and microwave signals.

show abstract

Coherent optical link over hundreds of metres and hundreds of terahertz with subfemtosecond timing jitter

Cited by 109 publications

References 27 publications

A new bound on excess frequency noise in second harmonic generation in PPKTP at the 10^−19 level

A new bound on excess frequency noise in second harmonic generation in PPKTP at the 10^−19 level

Quantum repeaters based on atomic ensembles and linear optics

Attosecond‐precision ultrafast photonics

Contact Info

Product

Resources

About