Optical fiber amplifier with two directional pumping
    13.
    发明授权
    Optical fiber amplifier with two directional pumping 失效
    光纤放大器采用双向抽水

    公开(公告)号:US5640268A

    公开(公告)日:1997-06-17

    申请号:US606298

    申请日:1996-02-23

    申请人: Jose Chesnoy

    发明人: Jose Chesnoy

    摘要: An amplifying fiber is connected at both ends to two respective pump-forming semiconductor lasers. The connections are made via two pump injection fibers and two multiplexers. According to the invention, each of the two pump injection fibers includes a respective photorefractive filter constituting a portion of the resonant cavity of the associated pump, and serving to separate the spectrum bands of the pumps. The invention is particularly applicable to optical fiber telecommunications networks.

    摘要翻译: 放大光纤的两端连接到两个相应的泵浦形成半导体激光器。 连接通过两个泵注射纤维和两个多路复用器进行。 根据本发明,两个泵浦注射纤维中的每一个包括构成相关泵的谐振腔的一部分的相应的光折射滤光器,并且用于分离泵的光谱带。 本发明特别适用于光纤电信网络。

    Transmission method and an optical link using multiplexing with
application
    14.
    发明授权
    Transmission method and an optical link using multiplexing with application 失效
    传输方式和使用多路复用应用的光链路

    公开(公告)号:US5510926A

    公开(公告)日:1996-04-23

    申请号:US371142

    申请日:1995-01-11

    摘要: A link using spectrum multiplexing, in which link an amplifying fiber amplifies a plurality of multiplexed carrier waves. The invention makes it possible to maintain a flat spectrum distribution of the gain of the amplifying fiber when the number of carrier waves varies. For that purpose, light that is amplified by the amplifying fiber and that is independent of the carrier waves is servo-controlled in power. The light is constituted by a reverse amplified spontaneous emission. After being filtered in a filter and detected by a photodiode, the light controls the power supplied to two laser diodes for pumping the fiber. The invention applies in particular to implementing optical transmission networks.

    摘要翻译: 使用频谱复用的链路,其中放大光纤放大多路复用载波的链路。 本发明使得当载波数量变化时,可以保持放大光纤的增益的平坦频谱分布。 为此,由放大光纤放大且与载波无关的光被电力伺服控制。 光由反向放大自发发射构成。 在滤波器中被滤波并被光电二极管检测到之后,光控制提供给两个激光二极管以供泵送光纤的功率。 本发明尤其适用于实现光传输网络。

    Optical pulse source, and a soliton optical transmission system
including the source
    15.
    发明授权
    Optical pulse source, and a soliton optical transmission system including the source 失效
    光脉冲源,以及包括光源的孤子光传输系统

    公开(公告)号:US5311351A

    公开(公告)日:1994-05-10

    申请号:US46488

    申请日:1993-04-13

    申请人: Jose Chesnoy

    发明人: Jose Chesnoy

    摘要: The source includes an electro-absorption modulator receiving a continuous light wave supplied by a laser emitter 10. The characteristic response curve of the modulator has a threshold so that the modulator transmits an optical pulse having a duration which is less than the duration of an electrical control pulse which is applied to the modulator by a control generator. Soliton-type optical pulses obtained in this way are transmitted via a line fiber to a receiver. Application to optical transmission.

    摘要翻译: 源包括接收由激光发射器10提供的连续光波的电吸收调制器。调制器的特征响应曲线具有阈值,使得调制器发射具有小于电的持续时间的持续时间的光脉冲 通过控制发生器施加到调制器的控制脉冲。 以这种方式获得的孤子型光脉冲通过线光纤传输到接收器。 适用于光传输。

    Positive feedback device for processing an optical signal
    16.
    发明授权
    Positive feedback device for processing an optical signal 失效
    用于处理光信号的正反馈装置

    公开(公告)号:US5265111A

    公开(公告)日:1993-11-23

    申请号:US841710

    申请日:1992-02-26

    摘要: A photodiode (26) receives an optical input signal (P1) and an internal optical signal (P2) and supplies in response thereto an internal electrical signal (I2), which in turn controls a laser (4) which effects amplification and supplies the internal optical signal and an output signal (P3). The feedback loop formed by this photodiode and laser leads to a strong non-linearity in the variation of the output signal as a function of the input signal. The invention is useful especially in optical fiber telecommunications systems.

    摘要翻译: 光电二极管(26)接收光输入信号(P1)和内部光信号(P2),并响应于内部电信号(I2)供应光电输入信号(I2),内部电信号(I2)进而控制实现放大的内部激光器(4) 光信号和输出信号(P3)。 由该光电二极管和激光器形成的反馈环路作为输入信号的函数导致输出信号变化的强非线性。 本发明特别适用于光纤通信系统。

    Laser providing stable femtosecond pulses
    17.
    发明授权
    Laser providing stable femtosecond pulses 失效
    激光提供稳定的飞秒脉冲

    公开(公告)号:US4815080A

    公开(公告)日:1989-03-21

    申请号:US49473

    申请日:1987-05-14

    IPC分类号: H01S3/094 H01S3/139 H01S3/098

    CPC分类号: H01S3/139 H01S3/094026

    摘要: A femtosecond dye laser comprises a dye amplifier assembly (30) pumped by a mode-locked neodymium YAG laser (35) operating with frequency doubling. The main dye laser cavity as defined on one side of the amplifier assembly (30) by a linear prism structure (11 and 14) leading to an outlet mirror (15), and on the other side of the amplifier assembly by an assembly (20) constituting an anti-resonant mirror disposed about a saturable absorption device (40). An error signal is tapped by leakage from one of the mirrors (22) and is spectrally analyzed and compared with a reference wavelength (at 50) enabling a high tension amplifier (60) to be controlled to act on a piezo-electric stack (19) in order to fix the position of the outlet mirror (15) so as to adjust the optical length of the cavity as a function of the spectral characteristics of the pulses it produces.

    摘要翻译: 飞秒染料激光器包括通过以倍频操作的锁模钕YAG激光器(35)泵浦的染料放大器组件(30)。 主要的染料激光腔通过线性棱镜结构(11和14)限定在放大器组件(30)的一侧,通过出口反射镜(15),放大器组件的另一侧通过组件(20 )构成围绕可饱和吸收装置(40)设置的反谐振反射镜。 一个误差信号由一个反射镜(22)的泄漏开始进行光谱分析,并与参考波长(50)进行比较,使得高压放大器(60)能够被控制成作用于压电叠层(19) ),以便固定出口镜(15)的位置,以便根据其产生的脉冲的光谱特性来调节空腔的光学长度。