Method and device for stabilization of the emission...

Details Method and device for stabilization of the emission... Method and device for stabilization of the emission...

H - Electricity

01

S

H01S 3/13 (2006.01) H01S 5/0687 (2006.01) H05B 43/00 (2006.01)

Patent

CA 2138105

The method and the device obtain stabilization by locking the emission wavelength of the laser to an absorption line of a gas. The radiation emitted by the laser is guided through the environment containing the gas to the detector along an optical waveguide giving rise to an evanescent field that propagates outside the waveguide (Figure 1).

L'invention est constituée par une méthode et un dispositif de stabilisation qui asservissent la longueur d'onde d'émission d'un laser à une raie d'absorption d'un gaz. Le rayonnement émis par le laser est guidé jusqu'au détecteur dans l'environnement qui contient le gaz par un guide de lumière qui engendre un champ évanescent se propageant à l'extérieur de ce guide (figure 1).

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