Quadricorrelator 방식을 이용한 광주파수 잠김루프 제작

Optical frequency locked loop using quadricorrelator

An experimental results of optical requency locked loop with DFB semiconductor laser as VCO are presented. Using quadricorrelator as frequency difference detector and frequency off-set locking technique with 1GHz reference frequency, frequency locking range of 140MHz was achieved. This paper reports the design and realization details of the loop.