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Thermorefractive no...
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Skehan, Connor,1993Chalmers tekniska högskola,Chalmers University of Technology
(author)
Thermorefractive noise reduction of photonic molecule frequency combs using an all-optical servo loop
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:9df105c8-7773-42ea-b05a-34dfd55c9664
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https://doi.org/10.1364/OE.496895DOI
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https://research.chalmers.se/publication/538314URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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Phase and frequency noise originating from thermal fluctuations is commonly a limiting factor in integrated photonic cavities. To reduce this noise, one may drive a secondary “servo/cooling” laser into the blue side of a cavity resonance. Temperature fluctuations which shift the resonance will then change the amount of servo/cooling laser power absorbed by the device as the laser moves relatively out of or into the resonance, and thereby effectively compensate for the fluctuation. In this paper, we use a low noise laser to demonstrate this principle for the first time in a frequency comb generated from a normal dispersion photonic molecule micro-resonator. Significantly, this configuration can be used with the servo/cooling laser power above the usual nonlinearity threshold since resonances with normal dispersion are available. We report a 50 % reduction in frequency noise of the comb lines in the frequency range of 10 kHz to 1 MHz and investigate the effect of the secondary servo/cooling noise on the comb.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Karunakaran, Anamika NairDanmarks Tekniske Universitet,Technical University of Denmark
(author)
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Varming, Poul
(author)
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Helgason, Òskar Bjarki,1989Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)skarb
(author)
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Montague, Patrick B.
(author)
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Schröder, Jochen,1976Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jochens
(author)
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Pu, MinhaoDanmarks Tekniske Universitet,Technical University of Denmark
(author)
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Yvind, K.Danmarks Tekniske Universitet,Technical University of Denmark
(author)
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Torres Company, Victor,1981Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)torresv
(author)
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Andrekson, Peter,1960Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)andrekso
(author)
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Chalmers tekniska högskolaDanmarks Tekniske Universitet
(creator_code:org_t)
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In:Optics Express31:21, s. 35208-352171094-40871094-4087
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