OPTICAL FIBER WAVELENGTH REFERENCE DEVICE
    4.
    发明公开
    OPTICAL FIBER WAVELENGTH REFERENCE DEVICE 审中-公开
    光纤波长参考装置

    公开(公告)号:EP1218982A2

    公开(公告)日:2002-07-03

    申请号:EP00978204.6

    申请日:2000-08-10

    Applicant: Coretek, Inc.

    Abstract: An optical fiber wavelength reference device (110) for tuning a tunable Fabry-Perot filter (105) and/or a tunable VCSEL (105) to a desired frequency, where the device uses a fiber etalon (120) to generate a pattern of reference frequencies against which the device is tuned. In addition, the device uses a detector (125) to monitor the output of the Fiber Etalon (120). The ouput of the detector (125) is inputed to a controller (115) used to control the VCSEL (105) or tunable Fabrey-Perot filter (105).

    Abstract translation: 一种用于将可调法布里珀罗滤波器(105)和/或可调谐VCSEL(105)调谐到期望频率的光纤波长参考装置(110),其中该装置使用光纤标准具(120)来产生参考图案 设备调谐的频率。 另外,该设备使用检测器(125)来监测光纤标准具(120)的输出。 检测器(125)的输出被输入到用于控制VCSEL(105)或可调Fabrey-Perot滤波器(105)的控制器(115)。

    DOUBLE ETALON OPTICAL WAVELENGTH REFERENCE DEVICE
    5.
    发明公开
    DOUBLE ETALON OPTICAL WAVELENGTH REFERENCE DEVICE 审中-公开
    用双标准具光学参考波长设备

    公开(公告)号:EP1218978A1

    公开(公告)日:2002-07-03

    申请号:EP00957375.9

    申请日:2000-08-10

    Applicant: Coretek, Inc.

    Abstract: A compact wavelength monitoring and control assembly (110) for a narrow band (i.e., laser) source is provided, comprising two narrow bandpass, wavelength selective transmission filter elements (130, 160) of Fabry-Perot structure through which two separate collimated beams from a laser source are directed onto two photodetectors (145, 175). A control circuit processes the simultaneously acquired signals from the two detectors (145, 175) as the laser wavelength is varied. The device functions as an optical wavelength discriminator in which the detectors (145, 175) convert optical energy to current (or voltage) for a feedback loop for controlling the laser source. Any one of a large number of discrete, predetermined wavelengths may be chosen for locking using the same device.

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