Alcatel

Sophie Borne

Florence Leplingard

Carlos Luis De Barros

Catherine Martinelli

Thierry Lopez

Disclosed is a Raman laser device () having a first cavity in which lasing occurs at a first frequency, and at least one second cavity in which lasing occurs at a second frequency. Thereby respective first and second waves inside the respective cavities are generated having a first power and a second power, respectively. Further, beams propagating outside the cavities are generated by coupling out a part of the first power and a part of the second power utilizing respective output mirrors. The part of the second power that is coupled out is attenuated without attenuating the complementary part of the second power remaining in the second cavity. The Raman laser device is characterized in that the part of the second power that is coupled out is attenuated utilizing at least one Fiber Bragg Grating ().

Multiple output Raman fiber laser with stable and small output power for seed applications

A method for adjusting the relative output power of individual output wavelengths of a multi-output-wavelength Raman laser () is disclosed. The method is characterized by the steps of suppressing the relative output power of a potentially most powerful output wavelength () in a first step (), adjusting the relative output power of the shortest output wavelength () in a second step (), adjusting the relative output power of further output wavelengths () in a third step (), and adjusting the relative output power of the potentially most powerful output wavelength () in a fourth step (). Further, a device () that performs such a method is disclosed, i.e. a device for adjusting the relative output power of individual output wavelengths () of such a laser ().

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D'Huison-Longueville, France

Sophie Borne