Passive, Broadband, and Low-Frequency Suppression of Laser Amplitude Noise to the Shot-Noise Limit Using a Hollow-Core Fiber

Euan Allen, Giacomo Ferranti, Kristina Rusimova, Jamie Francis-Jones, Maria Azini, Dylan Mahler, Timothy Ralph, Peter Mosley, Jonathan Matthews

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Abstract

Reducing noise to the shot-noise limit is a challenge for laser development for ultrasensitive applications in precision sensing and fundamental science. We use hollow-core fiber in a collinear-balanced-detection scheme to suppress 2.6 dB of amplitude noise to within 0.01 dB of the shot-noise limit, while simultaneously preserving the spectrum and temporal profile of picosecond laser pulses. We also provide an enhanced version of the scheme that concatenates multiple circuits for suppression over many frequencies and broad frequency ranges. We perform a first demonstration of this method and reduce total excess amplitude noise, between 2 and 6 MHz, by 85%. These demonstrations enable passive, broadband, all-guided fiber-laser technology operating at the shot-noise limit.

Original languageEnglish
Article number044073
Pages (from-to)1-7
Number of pages7
JournalPhysical Review Applied
Volume12
Issue number4
DOIs
Publication statusPublished - 31 Oct 2019

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Passive, Broadband, and Low-Frequency Suppression of Laser Amplitude Noise to the Shot-Noise Limit Using a Hollow-Core Fiber. / Allen, Euan; Ferranti, Giacomo; Rusimova, Kristina; Francis-Jones, Jamie; Azini, Maria; Mahler, Dylan; Ralph, Timothy; Mosley, Peter; Matthews, Jonathan.

In: Physical Review Applied, Vol. 12, No. 4, 044073 , 31.10.2019, p. 1-7.

Research output: Contribution to journalArticle

Allen, Euan ; Ferranti, Giacomo ; Rusimova, Kristina ; Francis-Jones, Jamie ; Azini, Maria ; Mahler, Dylan ; Ralph, Timothy ; Mosley, Peter ; Matthews, Jonathan. / Passive, Broadband, and Low-Frequency Suppression of Laser Amplitude Noise to the Shot-Noise Limit Using a Hollow-Core Fiber. In: Physical Review Applied. 2019 ; Vol. 12, No. 4. pp. 1-7.
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