Method for adjusting the output spectrum of a multi-output-wavelength Raman laser
    1.
    发明申请
    Method for adjusting the output spectrum of a multi-output-wavelength Raman laser 有权
    用于调整多输出波长拉曼激光器的输出光谱的方法

    公开(公告)号:US20040240487A1

    公开(公告)日:2004-12-02

    申请号:US10827274

    申请日:2004-04-20

    Applicant: ALCATEL

    CPC classification number: H01S3/302 H01S3/0675 H01S3/08086 H01S2301/04

    Abstract: A method for adjusting the relative output power of individual output wavelengths of a multi-output-wavelength Raman laser (10) is disclosed. The method is characterized by the steps of suppressing the relative output power of a potentially most powerful output wavelength (98) in a first step (108), adjusting the relative output power of the shortest output wavelength (94) in a second step (110), adjusting the relative output power of further output wavelengths (96, 100, 102, 104) in a third step (112), and adjusting the relative output power of the potentially most powerful output wavelength (98) in a fourth step (114). Further, a device (68) that performs such a method is disclosed, i.e. a device for adjusting the relative output power of individual output wavelengths (94, 96, 98, 100, 102, 104) of such a laser (10).

    Abstract translation: 公开了一种用于调整多输出波长拉曼激光器(10)的各个输出波长的相对输出功率的方法。 该方法的特征在于在第一步骤(108)中抑制潜在最强大的输出波长(98)的相对输出功率的步骤,在第二步骤(110)中调整最短输出波长(94)的相对输出功率 ),在第三步骤(112)中调整另外的输出波长(96,100,102,104)的相对输出功率,并且在第四步骤(114)中调整潜在最强大的输出波长(98)的相对输出功率 )。 此外,公开了一种用于调整这种激光器(10)的各个输出波长(94,96,100,102,104)的相对输出功率的装置(68)。

    Optical fiber amplifier device and communications system using the optical fiber amplifier device
    2.
    发明申请
    Optical fiber amplifier device and communications system using the optical fiber amplifier device 有权
    光纤放大器装置和通信系统采用光纤放大器装置

    公开(公告)号:US20030016441A1

    公开(公告)日:2003-01-23

    申请号:US10193310

    申请日:2002-07-12

    Applicant: ALCATEL

    CPC classification number: H01S3/06758 H01S3/06708 H01S3/06729

    Abstract: The invention relates to an optical fiber amplifier device with an optical signal input and output with first piece of amplifying fiber doped with lanthanide in a double-clad structure, a second piece of amplifying fiber doped with lanthanide in a ring structure and lasers for pumping the two fiber pieces with at least one pump module.

    Abstract translation: 本发明涉及一种具有光信号输入和输出的光纤放大器装置,其具有在双包层结构中掺杂有镧系元素的第一片放大光纤,在环形结构中掺杂有镧系元素的第二片放大光纤和用于泵浦 两个纤维件与至少一个泵模块。

    Multiple output Raman fiber laser with stable and small output power for seed applications
    3.
    发明申请
    Multiple output Raman fiber laser with stable and small output power for seed applications 有权
    多输出拉曼光纤激光器,具有稳定和小输出功率的种子应用

    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

    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。

    Double-clad optical fiber and fiber amplifier
    4.
    发明申请
    Double-clad optical fiber and fiber amplifier 审中-公开
    双包层光纤和光纤放大器

    公开(公告)号:US20020126974A1

    公开(公告)日:2002-09-12

    申请号:US10079876

    申请日:2002-02-22

    Applicant: ALCATEL

    CPC classification number: H01S3/06716 H01S3/1608 H01S3/1618 H01S3/1698

    Abstract: A fiber amplifier comprises an amplifying double-clad fiber (DCF). The fiber has a core having a first refractive index, an inner cladding surrounding the core and having a second refractive index lower than the first refractive index and an outer cladding surrounding the inner cladding. The core is doped with Erbium (Er) and co-doped with Ytterbium (Yb), and further co-doped with Cerium (Ce). The Ytterbium (Yb) enables pump energy transfer from Ytterbium (Yb) ions being in the excited state to Erbium (Er) ions being in the ground state (4I15/2). The Cerium enables a resonant energy transfer between the Erbium (Er) excited state (4I11/2) and Cerium (Ce) ground state (4F7/2). This leads to a lower population of the Erbium 4I11/2 state and thereby increases energy transfer from Ytterbium to Erbium.

    Abstract translation: 光纤放大器包括放大双包层光纤(DCF)。 光纤具有具有第一折射率的芯,围绕芯并且具有低于第一折射率的第二折射率的内包层和围绕内包层的外包层。 芯掺杂有铒(Er)并与镱(Yb)共同掺杂,并进一步与铈(Ce)共掺杂。 镱(Yb)使得能够从处于激发态的镱(Yb)离子的能量转移到处于基态的铒(Er)离子(4I15 / 2)。 铈可以实现铒(Er)激发态(4I11 / 2)和铈(Ce)基态(4F7 / 2)之间的共振能量传递。 这导致较低的铒4I11 / 2状态,从而增加了从镱到铒的能量转移。

    Cascaded Raman laser
    5.
    发明申请
    Cascaded Raman laser 有权
    级联拉曼激光器

    公开(公告)号:US20040125827A1

    公开(公告)日:2004-07-01

    申请号:US10624510

    申请日:2003-07-23

    Applicant: ALCATEL

    Abstract: A cascaded Raman laser (10) has a pump radiation source (12) emitting at a pump wavelength nullp, an input section (14) and an output section (16) made of an optical medium. Each section (14, 16) comprises wavelength selectors (141, 142, . . . , 145 and 161, 162, . . . , 165) for wavelengths null1, null2, . . . , nullnnullk, where nnull3, nullp

    Abstract translation: 级联拉曼激光器(10)具有以泵浦波长发射的泵浦辐射源(12),输入部分(14)和由光学介质制成的输出部分(16)。 每个部分(14,16)包括用于波长λ1,λ2,...的波长选择器(141,142,...,145和161,162,...,165)。 。 。 ,lambdan-k,其中n> = 3,lambdap = 1,发射激光的波长(10)。 激光器还包括由非线性光学介质制成的腔内部分(18),其具有零色散波长λ0并且设置在输入(14)和输出(16)部分之间。 波长λ1,λ2,... 。 。 ,选择波长选择器(141,142,...,145和161,162,...,165)的lambdan-k和腔内部分(18)的零色散波长λ0,使得能量被传送 通过多波混频在不同波长之间。

    Raman fiber amplification stage, optical system and method to control the Raman amplification
    6.
    发明申请
    Raman fiber amplification stage, optical system and method to control the Raman amplification 审中-公开
    拉曼光纤放大级,光学系统和控制拉曼放大的方法

    公开(公告)号:US20030184848A1

    公开(公告)日:2003-10-02

    申请号:US10359150

    申请日:2003-02-06

    Applicant: Alcatel

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

    Abstract: The present invention relates to a cascaded multi-wavelength Raman fiber amplification stage with a length of optical fiber having input (15) and output (16) sections, pump laser means (11) for introducing pump radiation of wavelength nullp into said length of optical fiber (13), at least two pairs of reflector means (151,161; . . . ;159, 169), spaced-apart the length of optical fiber (13), at least one of said pairs of reflector means has an output reflector mean (161, 162, 163), with a reflectivity lower than 100% and a feed back loop with: a tap coupler (20) for deriving a low percentage of the optical output signal as a optical monitor signal (28), at least one wavelength selecting element (21, 25,26, 27) for the optical monitor signal (28), at least one opto-electrical converter (23, 231,232,233) generating a electrical signal and a control circuit (27) for the electrical signal connected to adjustment means (181, 182, 183) adjusting the reflectivity of the output reflector means (161, 162, 163).

    Abstract translation: 本发明涉及具有输入(15)和输出(16)部分的具有一定长度的光纤的级联多波长拉曼光纤放大级,泵浦激光装置(11)用于将波长兰普的泵浦辐射引入所述光学长度 光纤(13),至少两对反射器装置(151,161; ...,159,169),其间隔开所述长度的光纤(13),所述反射器对中的至少一个具有输出反射器平均值 (161,162,163),具有低于100%的反射率和反馈回路,具有:用于导出低百分比的光输出信号作为光监视信号的抽头耦合器(20),至少一个 用于所述光学监视信号(28)的波长选择元件(21,25,26,27),至少一个产生电信号的光电转换器(23,231,232,233)和用于所述电信号的控制电路(27),所述电信号连接到 调整所述输出反射器装置的反射率的调节装置(181,182,183) (161,162,163)。

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