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Zero-Offset Frequency Locking of Lasers At Low Optical Powers With an Optical Phase Locked Loop

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Název: Zero-Offset Frequency Locking of Lasers At Low Optical Powers With an Optical Phase Locked Loop
Autoři: Larsson, Rasmus, 1994, Vijayan, Kovendhan, 1991, Andrekson, Peter, 1960
Zdroj: Journal of Lightwave Technology. 42(3):1183-1190
Témata: Optical receivers, Optical phase-locked loop, sensing, Optical fiber sensors, Optical amplifiers, Optical pumping, Optical noise, Communications, phase noise, Low power, metrology, Optical fibers, Adaptive optics, laser frequency locking
Popis: Frequency locking of lasers is fundamental to a vast number of applications within the field of optics. Usually, when locking a laser to an optical reference wave, it is imperative that locking can be maintained in spite of low reference powers. Previous solutions to frequency locking involve injection locking and/or optical phase locked loops. While previous works have shown locking to weak waves, we extend the lowest demonstrated optical power locked to by approximately 20 dB, realizing locking down to -90 dBm, using a novel digital dither optical phase-locked loop. Measurements of the locked laser phase error verify the performance. The loop design circumvents the presence of a dither on the locked laser light, hence avoiding dither penalties, and low-power locking is realized via coherent detection gain without any optical amplifiers. Low phase noise standard deviations of less than 20°at -80 dBm optical power and Allan deviation of $3\cdot 10^{-16}$ at 1 s averaging time indicate great potential for a variety of applications within optical sensing, communications, and metrology.
Popis souboru: electronic
Přístupová URL adresa: https://research.chalmers.se/publication/538485
https://research.chalmers.se/publication/538485/file/538485_Fulltext.pdf
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Zero-Offset Frequency Locking of Lasers At Low Optical Powers With an Optical Phase Locked Loop
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Larsson%2C+Rasmus%22">Larsson, Rasmus</searchLink>, 1994<br /><searchLink fieldCode="AR" term="%22Vijayan%2C+Kovendhan%22">Vijayan, Kovendhan</searchLink>, 1991<br /><searchLink fieldCode="AR" term="%22Andrekson%2C+Peter%22">Andrekson, Peter</searchLink>, 1960
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  Data: <i>Journal of Lightwave Technology</i>. 42(3):1183-1190
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Optical+receivers%22">Optical receivers</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+phase-locked+loop%22">Optical phase-locked loop</searchLink><br /><searchLink fieldCode="DE" term="%22sensing%22">sensing</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fiber+sensors%22">Optical fiber sensors</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+amplifiers%22">Optical amplifiers</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+pumping%22">Optical pumping</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+noise%22">Optical noise</searchLink><br /><searchLink fieldCode="DE" term="%22Communications%22">Communications</searchLink><br /><searchLink fieldCode="DE" term="%22phase+noise%22">phase noise</searchLink><br /><searchLink fieldCode="DE" term="%22Low+power%22">Low power</searchLink><br /><searchLink fieldCode="DE" term="%22metrology%22">metrology</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+fibers%22">Optical fibers</searchLink><br /><searchLink fieldCode="DE" term="%22Adaptive+optics%22">Adaptive optics</searchLink><br /><searchLink fieldCode="DE" term="%22laser+frequency+locking%22">laser frequency locking</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: Frequency locking of lasers is fundamental to a vast number of applications within the field of optics. Usually, when locking a laser to an optical reference wave, it is imperative that locking can be maintained in spite of low reference powers. Previous solutions to frequency locking involve injection locking and/or optical phase locked loops. While previous works have shown locking to weak waves, we extend the lowest demonstrated optical power locked to by approximately 20 dB, realizing locking down to -90 dBm, using a novel digital dither optical phase-locked loop. Measurements of the locked laser phase error verify the performance. The loop design circumvents the presence of a dither on the locked laser light, hence avoiding dither penalties, and low-power locking is realized via coherent detection gain without any optical amplifiers. Low phase noise standard deviations of less than 20°at -80 dBm optical power and Allan deviation of $3\cdot 10^{-16}$ at 1 s averaging time indicate great potential for a variety of applications within optical sensing, communications, and metrology.
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  Data: electronic
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1109/JLT.2023.3330707
    Languages:
      – Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 8
        StartPage: 1183
    Subjects:
      – SubjectFull: Optical receivers
        Type: general
      – SubjectFull: Optical phase-locked loop
        Type: general
      – SubjectFull: sensing
        Type: general
      – SubjectFull: Optical fiber sensors
        Type: general
      – SubjectFull: Optical amplifiers
        Type: general
      – SubjectFull: Optical pumping
        Type: general
      – SubjectFull: Optical noise
        Type: general
      – SubjectFull: Communications
        Type: general
      – SubjectFull: phase noise
        Type: general
      – SubjectFull: Low power
        Type: general
      – SubjectFull: metrology
        Type: general
      – SubjectFull: Optical fibers
        Type: general
      – SubjectFull: Adaptive optics
        Type: general
      – SubjectFull: laser frequency locking
        Type: general
    Titles:
      – TitleFull: Zero-Offset Frequency Locking of Lasers At Low Optical Powers With an Optical Phase Locked Loop
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            NameFull: Larsson, Rasmus
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            NameFull: Vijayan, Kovendhan
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            NameFull: Andrekson, Peter
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            – D: 01
              M: 01
              Type: published
              Y: 2024
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              Value: 42
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            – TitleFull: Journal of Lightwave Technology
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