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    • 2. 发明授权
    • 광섬유자이로 간섭신호 출력 변화 안정화 장치 및 방법
    • 用于稳定光纤陀螺中干涉仪输出变化的装置和方法
    • KR101319921B1
    • 2013-10-18
    • KR1020120099171
    • 2012-09-07
    • 국방과학연구소
    • 최우석정경호유명종
    • G01C19/72H01S3/083
    • G01C19/72H01S3/05H01S3/083H04B7/15585
    • PURPOSE: An interference signal output variance stabilization device of a fiber optic gyro and a method thereof are provided to reduce time and cost which are required to implement the fiber optic gyro. CONSTITUTION: An interference signal output variance stabilization device (701) of a fiber optic gyro comprises a standard offset voltage unit (703), amplitude gain controllers (702,705,707), integrators (704,706), and a peak detector (708). The standard offset voltage unit generates standard offset voltage which is set up as a center value of an analog/digital (A/D) converter. The amplitude gain controller sets up an amplitude gain so that the maximum value of interference signal output, which is generated by applying a modulating signal to an optical phase modulator (103) of the interference signal output variance stabilization device, does not exceed the maximum admissible input voltage of the A/D converter. The integrator is set up with a time constant to compare the DC offset voltage of the interference signal output with the standard offset voltage. The peak detector controls the amplitude gain of the amplitude gain controller by detecting the maximum value of the interference signal output and by comparing the maximum value of the interference signal output with the maximum admissible input voltage of the A/D converter. [Reference numerals] (S801) Start; (S802) Set up a direct current offset standard value as a center value of an analog/digital (A/D) converter; (S803) Set up an alternating amplitude gain so that the maximum value of interference signal output does not exceed the maximum admissible input voltage of the A/D converter; (S804) Set up the time constant of an integrator considering an alternating voltage frequency of the interference signal output and the time constant of a output stabilization circuit; (S805) Connect the maximum admissible input voltage of the A/D converter and the voltage of the interference signal output to a peak detector; (S806) Control the gain of the alternating voltage of the interference signal output by the output of the peak detector; (S807) End
    • 目的:提供光纤陀螺的干扰信号输出方差稳定装置及其方法,以减少实现光纤陀螺所需的时间和成本。 构成:光纤陀螺仪的干扰信号输出方差稳定装置(701)包括标准偏移电压单元(703),振幅增益控制器(702,705,707),积分器(704,706)和峰值检测器(708)。 标准偏移电压单元产生标准偏移电压,其设置为模拟/数字(A / D)转换器的中心值。 振幅增益控制器建立振幅增益,使得通过将调制信号施加到干扰信号输出方差稳定装置的光相位调制器(103)而产生的干扰信号输出的最大值不超过最大容许值 A / D转换器的输入电压。 积分器设置时间常数,以将干扰信号输出的直流偏移电压与标准偏移电压进行比较。 峰值检测器通过检测干扰信号输出的最大值,并将干扰信号输出的最大值与A / D转换器的最大允许输入电压进行比较来控制振幅增益控制器的幅度增益。 (附图标记)(S801)开始; (S802)设置直流偏移标准值作为模拟/数字(A / D)转换器的中心值; (S803)设置交变幅度增益,使得干扰信号输出的最大值不超过A / D转换器的最大允许输入电压; (S804)考虑干扰信号输出的交流电压频率和输出稳定电路的时间常数,建立积分器的时间常数; (S805)将A / D转换器的最大允许输入电压和输出的干扰信号的电压连接到峰值检测器; (S806)控制由峰值检测器的输出输出的干扰信号的交流电压的增益; (S807)结束
    • 3. 发明公开
    • Dual Wavelength Fiber Laser System for electromagnetic radiation
    • 用于电磁辐射的双波长光纤激光系统
    • KR20120012247A
    • 2012-02-09
    • KR20100074286
    • 2010-07-30
    • IUCF HYU
    • KIM RYUN KYUNGHAN YOUNG GEUNCHU SU HO
    • H01S3/067H01S3/083H01S3/10
    • H01S3/0675H01S3/0835H01S3/1003H01S5/1221
    • PURPOSE: A two-wavelength output optical fiber laser system for generation of electromagnetic waves is provided to generate tunable tera-hertz waves through a small simple optical fiber structure. CONSTITUTION: An amplification part(140) amplifies and transmits a signal corresponding to a specific gain bandwidth. A bragg grating of an optical signal device(110) has the property of reflecting a specific wavelength. A connection part(120) of a two-wavelength output optical fiber laser system(100) for generation of electromagnetic waves is preferably an optical circulator. The optical signal device comprises a first grating unit(112) and a second grating unit(114) that have different cycles. A saturated absorption part(170), in front of the optical signal device, forms an oscillation wavelength with a narrow line width and a single stable mode. An output unit(150) outputs the role of printing a portion of laser beam.
    • 目的:提供用于产生电磁波的双波长输出光纤激光系统,通过小的简单光纤结构产生可调谐的赫兹波。 构成:放大部分(140)放大并发射与特定增益带宽对应的信号。 光信号装置(110)的布拉格光栅具有反射特定波长的特性。 用于产生电磁波的双波长输出光纤激光系统(100)的连接部(120)优选为光循环器。 光信号装置包括具有不同周期的第一光栅单元(112)和第二光栅单元(114)。 在光信号装置前面的饱和吸收部分(170)形成具有窄线宽和单稳态的振荡波长。 输出单元(150)输出打印激光束的一部分的作用。
    • 7. 发明授权
    • 레이저
    • KR102389943B1
    • 2022-04-21
    • KR1020207025017
    • 2019-03-11
    • H01S3/083H01S3/13
    • 광학링 공진기를포함하는레이저시스템으로서, 이레이저시스템은: 링공진기의주위를제 1 방향으로진행하는제 1 빔을이 공진기로부터반사기를향해지향시키는빔 스플리터 - 반사기는제 1 빔을공진기내로되반사하므로제 1 빔은광학링 공진기의주위를반대방향으로진행하고, 즉제 1 방향으로진행하는제 1 빔을광학링 공진기의주위를진행하는제 2 빔과동일한방향으로방향전환시켜제 1 빔이광학링 공진기의주위를반대방향으로진행하도록함 -; 및제 1 빔의구경의전체에걸친위상의공간분포가제 2 빔의구경의전체에걸친위상의공간분포와더 유사해지도록또는실질적으로일치하게되도록, 제 1 빔의구경의전체에걸친위상의공간분포를수정하도록적합되어있는빔 수정기를포함한다.