1.5μm帯光周波数シンセサイザ

抄録

We have developed an optical frequency synthesizer with a tuning range of 1THz at 1.5μm region, using three laser diodes and an optical frequency comb generator. The accuracy and the stability of the synthesized output are about 100MHz and 6×10^-10, respectively. The fine setting resolution of 2MHz has been achieved by employing a ‘sub-master laser’ which enabled the elimination of inaccessible frequency regions in conventional methods. For the first time, the synthesizer has satisfied our first step target on four basic performances; accuracy, stability, tunable range, and resolution.