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G Grosche - One of the best experts on this subject based on the ideXlab platform.
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characterization of a 450 km baseline gps carrier phase Link using an optical Fiber Link
New Journal of Physics, 2015Co-Authors: Stefan Droste, Ronald Holzwarth, T W Hansch, S M F Raupach, Christian Grebing, Julia Leute, Arthur Matveev, A Bauch, G GroscheAbstract:A global positioning system (GPS) carrier-phase frequency transfer Link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical Fiber Link of 920 km length, established between the two endpoints, the Max-Planck-Institut fur Quantenoptik in Garching and the Physikalisch-Technische Bundesanstalt in Braunschweig. The characterization is accomplished by comparing two active hydrogen masers operated at both institutes. The masers serve as local oscillators and cancel out when the double differences are calculated, such that they do not constitute a limitation for the GPS Link characterization. We achieve a frequency instability of 3 x 10(-13) in 30 s and 5 x 10(-16) for long averaging times. Frequency comparison results obtained via both Links show no deviation larger than the statistical uncertainty of 6x10(-16). These results can also be interpreted as a successful cross-check of the measurement uncertainty of a truly remote end Fiber Link.
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characterization of a 450 km baseline gps carrier phase Link using an optical Fiber Link
arXiv: Instrumentation and Detectors, 2015Co-Authors: Stefan Droste, Ronald Holzwarth, T W Hansch, S M F Raupach, Christian Grebing, Julia Leute, Arthur Matveev, A Bauch, G GroscheAbstract:A GPS carrier-phase frequency transfer Link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical Fiber Link of 920 km length, established between the two endpoints, the Max-Planck-Institut f\"ur Quantenoptik in Garching and the Physikalisch-Technische Bundesanstalt in Braunschweig. The characterization is accomplished by comparing two active hydrogen masers operated at both institutes. The masers serve as local oscillators and cancel out when the double differences are calculated, such that they do not constitute a limitation for the GPS Link characterization. We achieve a frequency instability of 3 x 10^(-13) in 30 s and 5 x 10^(-16) for long averaging times. Frequency comparison results obtained via both Links show no deviation larger than the statistical uncertainty of 6 x 10^(-16). These results can be interpreted as a successful cross-check of the measurement uncertainty of a truly remote end Fiber Link.
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optical frequency transfer via 1840 km Fiber Link with superior stability
Conference on Lasers and Electro-Optics, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:We transferred an optical frequency along a 1840km Fiber Link and achieved an instability of 3x10^-15 at 1s with 4x10^-19 after 100s. The transferred frequency shows no systematic offset within an uncertainty of 3x10^-19. Detailed analysis revealed a t^-2 response in the modified Allan deviation.
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optical frequency transfer via 1840 km Fiber Link with superior stability
International Frequency Control Symposium, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:Optical frequency transfer over a 1840 km Fiber Link is presented. The Link is actively stabilized to deliver a frequency with superior stability and accuracy. The spectral noise distribution of the stabilized Link leads to an unprecedented fast averaging in the modified Allan deviation.
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optical frequency transfer over a single span 1840 km Fiber Link
Physical Review Letters, 2013Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:: To compare the increasing number of optical frequency standards, highly stable optical signals have to be transferred over continental distances. We demonstrate optical-frequency transfer over a 1840-km underground optical Fiber Link using a single-span stabilization. The low inherent noise introduced by the Fiber allows us to reach short term instabilities expressed as the modified Allan deviation of 2×10(-15) for a gate time τ of 1 s reaching 4×10(-19) in just 100 s. We find no systematic offset between the sent and transferred frequencies within the statistical uncertainty of about 3×10(-19). The spectral noise distribution of our Fiber Link at low Fourier frequencies leads to a τ(-2) slope in the modified Allan deviation, which is also derived theoretically.
Ronald Holzwarth - One of the best experts on this subject based on the ideXlab platform.
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characterization of a 450 km baseline gps carrier phase Link using an optical Fiber Link
New Journal of Physics, 2015Co-Authors: Stefan Droste, Ronald Holzwarth, T W Hansch, S M F Raupach, Christian Grebing, Julia Leute, Arthur Matveev, A Bauch, G GroscheAbstract:A global positioning system (GPS) carrier-phase frequency transfer Link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical Fiber Link of 920 km length, established between the two endpoints, the Max-Planck-Institut fur Quantenoptik in Garching and the Physikalisch-Technische Bundesanstalt in Braunschweig. The characterization is accomplished by comparing two active hydrogen masers operated at both institutes. The masers serve as local oscillators and cancel out when the double differences are calculated, such that they do not constitute a limitation for the GPS Link characterization. We achieve a frequency instability of 3 x 10(-13) in 30 s and 5 x 10(-16) for long averaging times. Frequency comparison results obtained via both Links show no deviation larger than the statistical uncertainty of 6x10(-16). These results can also be interpreted as a successful cross-check of the measurement uncertainty of a truly remote end Fiber Link.
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characterization of a 450 km baseline gps carrier phase Link using an optical Fiber Link
arXiv: Instrumentation and Detectors, 2015Co-Authors: Stefan Droste, Ronald Holzwarth, T W Hansch, S M F Raupach, Christian Grebing, Julia Leute, Arthur Matveev, A Bauch, G GroscheAbstract:A GPS carrier-phase frequency transfer Link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical Fiber Link of 920 km length, established between the two endpoints, the Max-Planck-Institut f\"ur Quantenoptik in Garching and the Physikalisch-Technische Bundesanstalt in Braunschweig. The characterization is accomplished by comparing two active hydrogen masers operated at both institutes. The masers serve as local oscillators and cancel out when the double differences are calculated, such that they do not constitute a limitation for the GPS Link characterization. We achieve a frequency instability of 3 x 10^(-13) in 30 s and 5 x 10^(-16) for long averaging times. Frequency comparison results obtained via both Links show no deviation larger than the statistical uncertainty of 6 x 10^(-16). These results can be interpreted as a successful cross-check of the measurement uncertainty of a truly remote end Fiber Link.
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optical frequency transfer via 1840 km Fiber Link with superior stability
Conference on Lasers and Electro-Optics, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:We transferred an optical frequency along a 1840km Fiber Link and achieved an instability of 3x10^-15 at 1s with 4x10^-19 after 100s. The transferred frequency shows no systematic offset within an uncertainty of 3x10^-19. Detailed analysis revealed a t^-2 response in the modified Allan deviation.
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optical frequency transfer via 1840 km Fiber Link with superior stability
International Frequency Control Symposium, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:Optical frequency transfer over a 1840 km Fiber Link is presented. The Link is actively stabilized to deliver a frequency with superior stability and accuracy. The spectral noise distribution of the stabilized Link leads to an unprecedented fast averaging in the modified Allan deviation.
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optical frequency transfer over a single span 1840 km Fiber Link
Physical Review Letters, 2013Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:: To compare the increasing number of optical frequency standards, highly stable optical signals have to be transferred over continental distances. We demonstrate optical-frequency transfer over a 1840-km underground optical Fiber Link using a single-span stabilization. The low inherent noise introduced by the Fiber allows us to reach short term instabilities expressed as the modified Allan deviation of 2×10(-15) for a gate time τ of 1 s reaching 4×10(-19) in just 100 s. We find no systematic offset between the sent and transferred frequencies within the statistical uncertainty of about 3×10(-19). The spectral noise distribution of our Fiber Link at low Fourier frequencies leads to a τ(-2) slope in the modified Allan deviation, which is also derived theoretically.
Franz X. Kärtner - One of the best experts on this subject based on the ideXlab platform.
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one femtosecond long term stable remote laser synchronization over a 3 5 km Fiber Link
Optics Express, 2014Co-Authors: Ming Xin, Patrick T Callahan, Kemal Şafak, Michael Y. Peng, Franz X. KärtnerAbstract:Long-term stable timing distribution over a 3.5-km polarization maintaining (PM) Fiber Link using balanced optical cross-correlators (BOC) for optical-to-optical synchronization is demonstrated. Remote laser synchronization over 40 hours showed a residual timing jitter and drift of 2.5 fs for the whole locking period and only 1.1 fs integrated from 100 μHz to 1 MHz. This result corresponds to the lowest jitter and drift achieved to date for a multi-km Fiber Link and remote timing synchronization operating continuously over multiple days.
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One-femtosecond, long-term stable remote laser synchronization over a 3.5-km Fiber Link
2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications, 2014Co-Authors: Kemal Şafak, Patrick T Callahan, Michael Y. Peng, Franz X. KärtnerAbstract:Long-term stable remote laser synchronization over a 3.5 km long polarization maintaining Fiber Link is demonstrated. The residual rms-timing jitter and drift over 36-hour operation is 0.96 fs integrated from 100 μHz to 1 MHz.
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long term stable sub femtosecond timing distribution via a 1 2 km polarization maintaining Fiber Link approaching 10 21 Link stability
Optics Express, 2013Co-Authors: Michael Y. Peng, Patrick T Callahan, M F Yan, Amir H Nejadmalayeri, Stefano Valente, Ming Xin, Lars Grunernielsen, E Monberg, John M Fini, Franz X. KärtnerAbstract:Long-term stable, sub-femtosecond timing distribution over a 1.2-km polarization-maintaining (PM) Fiber-optic Link using balanced optical cross-correlators for Link stabilization is demonstrated. Novel dispersion-compensating PM Fiber was developed to construct a dispersion-slope-compensated PM Link, which eliminated slow timing drifts and jumps previously induced by polarization mode dispersion in standard single-mode Fiber. Numerical simulations of nonlinear pulse propagation in the Fiber Link confirmed potential sub-100-as timing stability for pulse energies below 70 pJ. Link operation for 16 days showed ~0.6 fs RMS timing drift and during a 3-day interval only ~0.13 fs drift, which corresponds to a stability level of 10(-21).
Stefan Droste - One of the best experts on this subject based on the ideXlab platform.
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characterization of a 450 km baseline gps carrier phase Link using an optical Fiber Link
New Journal of Physics, 2015Co-Authors: Stefan Droste, Ronald Holzwarth, T W Hansch, S M F Raupach, Christian Grebing, Julia Leute, Arthur Matveev, A Bauch, G GroscheAbstract:A global positioning system (GPS) carrier-phase frequency transfer Link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical Fiber Link of 920 km length, established between the two endpoints, the Max-Planck-Institut fur Quantenoptik in Garching and the Physikalisch-Technische Bundesanstalt in Braunschweig. The characterization is accomplished by comparing two active hydrogen masers operated at both institutes. The masers serve as local oscillators and cancel out when the double differences are calculated, such that they do not constitute a limitation for the GPS Link characterization. We achieve a frequency instability of 3 x 10(-13) in 30 s and 5 x 10(-16) for long averaging times. Frequency comparison results obtained via both Links show no deviation larger than the statistical uncertainty of 6x10(-16). These results can also be interpreted as a successful cross-check of the measurement uncertainty of a truly remote end Fiber Link.
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characterization of a 450 km baseline gps carrier phase Link using an optical Fiber Link
arXiv: Instrumentation and Detectors, 2015Co-Authors: Stefan Droste, Ronald Holzwarth, T W Hansch, S M F Raupach, Christian Grebing, Julia Leute, Arthur Matveev, A Bauch, G GroscheAbstract:A GPS carrier-phase frequency transfer Link along a baseline of 450 km has been established and is characterized by comparing it to a phase-stabilized optical Fiber Link of 920 km length, established between the two endpoints, the Max-Planck-Institut f\"ur Quantenoptik in Garching and the Physikalisch-Technische Bundesanstalt in Braunschweig. The characterization is accomplished by comparing two active hydrogen masers operated at both institutes. The masers serve as local oscillators and cancel out when the double differences are calculated, such that they do not constitute a limitation for the GPS Link characterization. We achieve a frequency instability of 3 x 10^(-13) in 30 s and 5 x 10^(-16) for long averaging times. Frequency comparison results obtained via both Links show no deviation larger than the statistical uncertainty of 6 x 10^(-16). These results can be interpreted as a successful cross-check of the measurement uncertainty of a truly remote end Fiber Link.
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optical frequency transfer via 1840 km Fiber Link with superior stability
Conference on Lasers and Electro-Optics, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:We transferred an optical frequency along a 1840km Fiber Link and achieved an instability of 3x10^-15 at 1s with 4x10^-19 after 100s. The transferred frequency shows no systematic offset within an uncertainty of 3x10^-19. Detailed analysis revealed a t^-2 response in the modified Allan deviation.
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optical frequency transfer via 1840 km Fiber Link with superior stability
International Frequency Control Symposium, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:Optical frequency transfer over a 1840 km Fiber Link is presented. The Link is actively stabilized to deliver a frequency with superior stability and accuracy. The spectral noise distribution of the stabilized Link leads to an unprecedented fast averaging in the modified Allan deviation.
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optical frequency transfer over a single span 1840 km Fiber Link
Physical Review Letters, 2013Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:: To compare the increasing number of optical frequency standards, highly stable optical signals have to be transferred over continental distances. We demonstrate optical-frequency transfer over a 1840-km underground optical Fiber Link using a single-span stabilization. The low inherent noise introduced by the Fiber allows us to reach short term instabilities expressed as the modified Allan deviation of 2×10(-15) for a gate time τ of 1 s reaching 4×10(-19) in just 100 s. We find no systematic offset between the sent and transferred frequencies within the statistical uncertainty of about 3×10(-19). The spectral noise distribution of our Fiber Link at low Fourier frequencies leads to a τ(-2) slope in the modified Allan deviation, which is also derived theoretically.
H Schnatz - One of the best experts on this subject based on the ideXlab platform.
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optical frequency transfer via 1840 km Fiber Link with superior stability
Conference on Lasers and Electro-Optics, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:We transferred an optical frequency along a 1840km Fiber Link and achieved an instability of 3x10^-15 at 1s with 4x10^-19 after 100s. The transferred frequency shows no systematic offset within an uncertainty of 3x10^-19. Detailed analysis revealed a t^-2 response in the modified Allan deviation.
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optical frequency transfer via 1840 km Fiber Link with superior stability
International Frequency Control Symposium, 2014Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:Optical frequency transfer over a 1840 km Fiber Link is presented. The Link is actively stabilized to deliver a frequency with superior stability and accuracy. The spectral noise distribution of the stabilized Link leads to an unprecedented fast averaging in the modified Allan deviation.
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optical frequency transfer over a single span 1840 km Fiber Link
Physical Review Letters, 2013Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:: To compare the increasing number of optical frequency standards, highly stable optical signals have to be transferred over continental distances. We demonstrate optical-frequency transfer over a 1840-km underground optical Fiber Link using a single-span stabilization. The low inherent noise introduced by the Fiber allows us to reach short term instabilities expressed as the modified Allan deviation of 2×10(-15) for a gate time τ of 1 s reaching 4×10(-19) in just 100 s. We find no systematic offset between the sent and transferred frequencies within the statistical uncertainty of about 3×10(-19). The spectral noise distribution of our Fiber Link at low Fourier frequencies leads to a τ(-2) slope in the modified Allan deviation, which is also derived theoretically.
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optical frequency transfer over a single span 1840 km Fiber Link
Physical Review Letters, 2013Co-Authors: Stefan Droste, Thomas Udem, G Grosche, Katharina Predehl, H Schnatz, T W Hansch, F Ozimek, Ronald HolzwarthAbstract:To compare the increasing number of optical frequency standards, highly stable optical signals have to be transferred over continental distances. We demonstrate optical-frequency transfer over a 1840-km underground optical Fiber Link using a single-span stabilization. The low inherent noise introduced by the Fiber allows us to reach short term instabilities expressed as the modified Allan deviation of $2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}15}$ for a gate time $\ensuremath{\tau}$ of 1 s reaching $4\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}19}$ in just 100 s. We find no systematic offset between the sent and transferred frequencies within the statistical uncertainty of about $3\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}19}$. The spectral noise distribution of our Fiber Link at low Fourier frequencies leads to a ${\ensuremath{\tau}}^{\ensuremath{-}2}$ slope in the modified Allan deviation, which is also derived theoretically.
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optical frequency transfer over a single span 1840 km Fiber Link
International Frequency Control Symposium, 2013Co-Authors: Stefan Droste, Thomas Udem, Ronald Holzwarth, H Schnatz, T W Hansch, F Ozimek, S M F Raupach, G GroscheAbstract:We demonstrate optical frequency transfer over an 1840 km underground optical Fiber Link using a single-span stabilization. To compensate for more than 420 dB of optical attenuation of the light we use twenty Erbium doped Fiber amplifiers along the entire Link and two additional Fiber Brillouin amplifiers. The good passive stability of our Fiber Link allows us to reach short term instabilities expressed as the modified Allan deviation of 3 × 10-15 for a gate time τ of 1 s reaching 4 × 10-19 in just 100 s. By comparing the sent and transferred frequencies we find no systematic offset within the statistical uncertainty of about 3 × 10-19. The spectral noise distribution of our Fiber Link at low Fourier frequencies leads to a τ-2 slope in the modified Allan deviation.
