 To do that, a long delay line was integrated in the Meudon Observatory to be used in the CFHT Coudé room.Currently, the delay line is to be shipped to Hawai'i to be integrated in the Coudé room.The next stage will be the use of the two Kecks and the Subaru, then the use of Gemini North, the CFHT and UKIRT together, and finally, the use of all telescopes together.