Repetition frequency control device,申请号GB20110021858-传众专利搜索

Repetition frequency control device

申请公布号：GB2487116(B)

申请号：GB20110021858

申请日期：2011.12.20

申请公布日期：2013.11.20

申请人：

ADVANTEST CORP

发明人：TOMOYU YAMASHITA;AKIYOSHI IRISAWA

分类号：H01S3/10;H01S3/105;H01S3/139;H01S3/23

主分类号：H01S3/10

摘要：According to the repetition frequency control device, a master laser outputs a master laser light pulse the repetition frequency of which is controlled to a predetermined value. A slave laser outputs a slave laser light pulse. A reference comparator compares a voltage of a reference electric signal the repetition frequency of which is the predetermined value and a predetermined voltage with each other, thereby outputting a result thereof. A measurement comparator compares a voltage based on a light intensity of the slave laser light pulse and the predetermined voltage with each other, thereby outputting a result thereof. A phase difference detector detects a phase difference between the output from the reference comparator and the output from the measurement comparator. A loop filter removes a high-frequency component of an output from the phase difference detector.