公开(公告)号：US20040174913A1

公开(公告)日：2004-09-09

申请号：US10781626

申请日：2004-02-20

Applicant: ALCATEL

Inventor： Florence Leplingard ,  Catherine Martinelli ,  Sophie Borne ,  Carlos De Barros ,  Thierry Lopez

IPC: H01S003/30

CPC classification number: H01S3/302

Abstract: Disclosed is a Raman laser device (10) 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 (46, 62).

Abstract translation: 公开了一种拉曼激光装置（10），其具有第一空腔，其中以第一频率发生激光，以及至少一个第二腔，其中以第二频率发生激光。 从而分别产生具有第一功率和第二功率的相应空腔内各自的第一和第二波。 此外，通过使用相应的输出反射镜耦合输出第一功率的一部分和第二功率的一部分来产生在空腔外部传播的光束。 耦合出的第二功率的部分被衰减，而不会衰减残留在第二腔中的第二功率的互补部分。 拉曼激光器件的特征在于，使用至少一个光纤布拉格光栅（46,62）衰减耦合出的第二功率的部分。

公开(公告)号：US20030138000A1

公开(公告)日：2003-07-24

申请号：US10339341

申请日：2003-01-10

Applicant: ALCATEL

Inventor： Dominique Bayart ,  Carlos De Barros ,  Thierry Lopez ,  Xavier Normandin

IPC: H01S003/30 ,  H01S003/10 ,  H01S003/08

CPC classification number: H01S3/0675 ,  H01S3/08086 ,  H01S3/1055 ,  H01S3/302

Abstract: The present invention relates to a cascaded multi-wavelength Raman fiber laser adapted for emitting radiation of at least one wavelength nulls1, with a length of optical fiber (13) having input (15) and output (16) sections, means (11) for introducing pump radiation of wavelength nullp into said length of optical fiber (13), at least one pair of spaced-apart reflector means (151,161; . . . ;159, 169), defining an optical cavity belonging to said optical fiber, each of said reflector means having a center wavelength, the reflector means of each pair being located respectively at said input section (15) and said output section (16) of said optical fiber and at least one of said pairs of reflector means having its reflector means located at said output section (16), called output reflector means (161, 162, 163), having a lower reflectivity at said center wavelength than the corresponding reflector means of the same pair (151, 152, 153) located at said input section (15), so as to emit radiation of said output wavelengths out of said optical fiber (13).

Abstract translation: 本发明涉及一种级联的多波长拉曼光纤激光器，其适用于发射具有输入（15）和输出（16）部分的具有一定长度的光纤（13）的至少一个波长兰姆1的辐射，装置（11）用于 将波长lambdp的泵浦辐射引入所述长度的光纤（13）中，限定属于所述光纤的至少一对间隔开的反射器装置（151,161; ... 159,169），每个反射器装置 所述反射器装置具有中心波长，每对的反射器装置分别位于所述光纤的所述输入部分（15）和所述输出部分（16）处，并且所述反射器装置对中的至少一个具有其反射器装置 在所述输出部分（16）处，称为输出反射器装置（161,162,163），其在所述中心波长处的反射率低于位于所述输入部分处的相同对（151,152,153）的相应反射器装置 15），以便发射r 所述光纤（13）中的所述输出波长的附着。

公开(公告)号：US20030012502A1

公开(公告)日：2003-01-16

申请号：US10188080

申请日：2002-07-03

Applicant: ALCATEL

Inventor： Isabelle Riant ,  Carlos De Barros ,  Thierry Lopez

IPC: G02B006/34

CPC classification number: G02B6/02138 ,  G02B6/02085 ,  G02B6/02152

Abstract: A method for imprinting a plurality of slanted Bragg gratings into a photosensitive optical fiber by exposure of said fiber to a pattern of light shaped in space and/or time and of suitable wavelenth is presented. According to the invention a basic slanted Bragg grating of a determined period is imprinted into said fiber, while, simultanously, a periodic apodisation function is applied to said single slanted Bragg grating. In its preferred embodiment the imprinting light pattern is generated by a phase mask from a UV laser, the phase mask being dithered during the imprinting.

Abstract translation: 提出了一种通过将所述光纤暴露于空间和/或时间和合适的波浪形状的光图案将多个倾斜的布拉格光栅压印成感光光纤的方法。 根据本发明，将所确定的周期的基本倾斜布拉格光栅印刷到所述光纤中，同时将周期性的变迹函数应用于所述单个倾斜布拉格光栅。 在其优选实施例中，通过来自UV激光器的相位掩模产生压印光图案，在印迹期间相位掩模被抖动。