Resonator for electromagnetic waves with a stabilizer and...

Details Resonator for electromagnetic waves with a stabilizer and... Resonator for electromagnetic waves with a stabilizer and...

H - Electricity

01

S

H01S 3/083 (2006.01) H01S 3/139 (2006.01) H04B 10/18 (2006.01) H01S 3/067 (2006.01) H01S 3/098 (2006.01)

Patent

CA 2206957

A resonator (1) for electromagnetic waves with a stabilizer can, for example, be part of a mode-coupled fiber laser. The stabilizer (2) is provided to stabilize the effective length of the resonator (1). Stabilization is accomplished in a first embodiment via two temperature controllers (3, 4) controlling the temperature of a first portion (L1) and the temperature of a second portion (L2) of the resonator (1). The temperature of the second portion (L2) is controlled as a function of an error signal generated by deviations of the resonator (1) from a nominal length. The second portion (L2) is significantly shorter than the first portion (L1).

Un résonateur (1) à ondes électromagnétiques doté d'un stabilisateur peut, par exemple, faire partie d'un laser à modes synchronisés. Le stabilisateur (2) sert à stabiliser la longueur effective du résonateur (1). Dans une première concrétisation de l'invention, la stabilisation est effectuée au moyen de deux contrôleurs de température (3, 4) qui contrôlent la température d'une première partie (L1) et celle d'une seconde partie (L2) du résonateur (1). La température de la seconde partie (L2) est contrôlée au moyen d'un signal d'erreur produit par les déviations du résonateur (1) par rapport à une longueur nominale. La seconde partie (L2) est sensiblement plus courte que la première (L1).

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