How to connect to REFIMEVE?

Arrival of the metrological signal at partner laboratories:

This section is intended for partner laboratories and provides an overview of the steps involved in receiving the REFIMEVE metrological signal. Below is an explanation of these steps, along with the technical sheet detailing the specifications of the rack and fibers.

Download the technical sheet

1/ Availability of RENATER Fibers

The first step involves the availability of RENATER fibers. RENATER then installs Optical Add-Drop Multiplexers (OADMs), which allow the REFIMEVE metrological signal to be added or extracted from the RENATER network. This marks the beginning of the metrological link deployment.

2/ Setting up the Instruments

The REFIMEVE or MuQuans team installs all necessary instruments and commissions the link. A performance optimization period is required before the metrological signal can be fully utilized.

Two Scenarios for Connection:

• For Laboratories Outside the Paris Region: The signal is extracted at the end of the link using a regeneration station where an output is dedicated to the user. As the RENATER node may be several hundred meters away from the laboratory, noise compensation is planned. A user module is connected to the station, positioned as close as possible to the frequency comb or experiment. This module allows part of the signal to be returned to detect and compensate for noise.
• For Laboratories in the Paris Region: An extraction station is installed close to the experiment with a dedicated user output.

All instruments are provided by EquipEx.

3/ Connecting Your Laboratory

The metrological signal arrives at the RENATER Network Node located at your university or institute. The regeneration or extraction station is located within this node. In the first scenario, a user module will be installed at your premises, as close as possible to your experiment or frequency comb.

To connect your laboratory, you need to ensure that a fiber conforming to the G652 standard (SMF-28 reference) is available between the Network Node and your laboratory. Additionally, your experiment room must be connected.

For this, please contact the Computer Resource Center (or equivalent) at your university, which often operates its own intra-university fiber network.

The specifications of the fibers compatible with REFIMEVE are outlined in the document “Fiche technique pour l’hébergement de matériel scientifique du projet REFIMEVE.”

In addition to the fiber, it is essential to ensure the availability of space or a rack in the RENATER node and in your laboratory, with the detailed specifications provided in the technical sheet.