Generation of five phase-locked harmonics by implementing a divide-by-three optical frequency divider

Suhaimi, Nur Sabrina; Ohae, Chiaki; Gavara, Trivikramarao; Nakagawa, K.; Hong, Feng−Lei; Katsuragawa, M.

doi:10.1364/ol.40.005802

Cited by 11 publications

(1 citation statement)

References 19 publications

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“…This allows us to accurately control the incident angle of the input beams, which results in change of the optical path through the glass ( Figure S1 in the Supplementary Materials). The change of the optical path, in turns, lead to the modification of the relative phase among several pulses [20]. By using two glass plates and rotating them in opposite direction, we can change the optical paths of the pulses without shifting the directions of the beams.…”

Section: Methodsmentioning

confidence: 99%

Generation of Ultrafast Optical Pulses via Molecular Modulation in Ambient Air

et al. 2019

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We investigated the possibility of making ever-shorter optical pulses by using the nonlinearity of ambient air. We produced a broad spectrum consisting of mutually coherent optical sidebands via collinear Raman generation driven by two picosecond laser pulses that are Raman-resonant with molecular vibrations of nitrogen. We demonstrated the ability to adjust the sideband phases via dispersion control which we accomplished by changing the optical path length of the generated multi-color beam through a pair of tilted glass plates. The resultant measured phases suggest the generation of a 3-fs optical pulse train.

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Section: Methodsmentioning

confidence: 99%

Generation of Ultrafast Optical Pulses via Molecular Modulation in Ambient Air

et al. 2019

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Optical frequency divider with division uncertainty at the 10−21 level

Yao

Jiang

et al. 2016

National Science Review

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Optical clocks with unprecedented accuracy of 10 −18 will lead to innovations in many research areas. All the applications of optical clocks rely on the ability of precisely converting the frequency from one optical clock to another, or particularly to the frequencies in the fiber telecom band for long-distance transmission. Here, we report a low-noise, high precision optical frequency divider. It can realize accurate optical frequency conversion as well as enable precise measurement of optical frequency ratios. By comparing against the frequency ratio between the fundamental and the second harmonic of a 1064 nm laser rather than a second similar system, the optical frequency divider is demonstrated to have a frequency division instability of 6 × 10 −19 at 1 s and a fractional frequency division uncertainty of 1.4 × 10 −21 , nearly three orders of magnitude better than the most accurate optical clocks. It allows optical clocks to be accessible to many precision measurement applications.

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