Dominik Husmann

Long-haul dissemination of the Swiss national time-scale UTC(CH) in a telecommunication fiber network via White Rabbit

Antoine Jallageas, Dominik Husmann, Jacques Morel, Fabian Mauchle et autres

White Rabbit has emerged as a promising technology for time-scale dissemination, providing resilience to satellite techniques. To achieve state-of-the-art synchronicity at the sub-nanosecond level in a White Rabbit network, a complete characterization of physical effects, components, and the reference time scale is …

ch, us, br (code pays fourni par la source)

Progress Toward a Compact Two-Photon Rb Clock with Long-Term Stability Below 10-15

Etienne Batori, Thibaud Ruelle, Stefan Kundermann, Victor Helson et autres

SummaryProgress on the development of a compact two-photon Rb clock designed for timekeeping applications is presented. Current short-term and long-term limitations of the technology are discussed. Continuous operation during 4 months of an integrated prototype at the Swiss national metrology institute (METAS), …

ch (code pays fourni par la source)

An illustrated guide to: Distributed and integrated fibre-optic sensing in seismology

Andreas Fichtner, Fabian Walter, Patrick Paitz, Sara Anneleen Klaasen et autres

The properties of laser signals are affected by deformation of the optical fibre through which they are transmitted. While this deformation dependence is undesirable in telecommunication, it can be exploited for the construction of novel seismic sensors that fill a niche in …

ch (code pays fourni par la source)

Seismic noise interferometry for phase transmission fibre optics

Sixtine Dromigny, Daniel C Bowden, Sebastian Noe, Dominik Husmann et autres

Similar to Distributed Acoustic Sensing (DAS), phase transmission fibre optics allows for large bandwidth seismic data measurements using fibre-optic cables. However, while the application range of DAS is limited to tens of kilometres, phase transmission fibre optics has an application range that …

Earthquake source inversion by integrated fiber-optic sensing

Nils Müller, Sebastian Noe, Dominik Husmann, Jacques Morel et autres

We present an earthquake source inversion using a single time series produced by integrated fiber-optic sensing in a phase noise cancellation (PNC) system used for frequency metrology. Operating on a 123 km long fiber between Bern and Basel (Switzerland), the PNC system …

ch (code pays fourni par la source)

Development of a High-Performance and Swiss Based Rolex Timescale System Including a Unique Optical Atomic Clock

Jacques Haesler, Lionel Bischof, Jonathan Bennès, Laurent P. Balet et autres

A high-availability and high-stability timescale system, the Rolex Timescale, designed in collaboration between CSEM and METAS for Rolex, has been developed. This system, targeting state-of-the-art performances, consists of two distinct redundant timescales distant by more than 100 km. In view of the …

ch (code pays fourni par la source)

Detection and Analysis of Anthropogenic Patterns in a Phase-Stabilized Optical Fiber Network

Dominik Husmann, Serge Alain Zaugg, Jacques Morel

Phase-stabilized fiber networks for state-of-the-art optical frequency dissemination promise versatile application as environmental sensors, being sensitive to seismic waves, temperature variations or anthropogenic acoustic noise. Here we analyze the noise picked up in such a fiber network connecting METAS in Bern to …

ch (code pays fourni par la source)

Long-range fiber-optic earthquake sensing by active phase noise cancellation

Sebastian Noe, Dominik Husmann, Nils Müller, Jacques Morel et autres

We introduce a novel fiber-optic environmental deformation sensor operating on active phase-noise cancellation (PNC). Networks with PNC have been established over the last decade by national metrology institutes to enable state-of-the-art frequency dissemination of atomic clock signals. Utilizing this infrastructure, PNC sensing …

ch (code pays fourni par la source)

Comparison of Time Synchronization Sources for PMU Calibration Infrastructures

Federica Costa, Guglielmo Frigo, Dominik Husmann, Antoine Jallageas et autres

Monitoring and control applications for modern power systems shall rely on a distributed and synchronized measurement infrastructure. In this context, the calibration of new generation Phasor Measurement Units (PMUs) is becoming a challenge for National Metrological Institutes, and requires the minimization of …

it, ch (code pays fourni par la source)

Long-range fiber-optic earthquake sensing by active phase noise cancellation

Sebastian Noe, Dominik Husmann, Nils Müller, Jacques Morel et autres

We present a long-range fiber-optic environmental deformation sensor based on active phase noise cancellation (PNC) in metrological frequency dissemination. PNC sensing exploits recordings of a compensation frequency that is commonly discarded. Without the need for dedicated measurement devices, it operates synchronously with …

ch (code pays fourni par la source)

Long-range fiber-optic earthquake sensing by active phase noise cancellation

Sebastian Noe, Dominik Husmann, Nils Müller, Jacques Morel et autres

We present a long-range fiber-optic environmental deformation sensor based on active phase noise cancellation (PNC) in metrological frequency dissemination. PNC sensing exploits recordings of a compensation frequency that is commonly discarded. Without the need for dedicated measurement devices, it operates synchronously with …

International Conference on Quantum Technologies for High-Energy Physics (QT4HEP22)

Dominik Husmann