Hong Feng-Lei, Minoshima Kaoru, Onae Atsushi, Inaba Hajime, Takada Hideyuki, Hirai Akiko, Matsumoto Hirokazu, Sugiura Toshiharu, Yoshida Makoto
National Institute of Advanced Industrial Science and Technology, Tsukuba Central 3, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8563, Japan.
Opt Lett. 2003 Sep 1;28(17):1516-8. doi: 10.1364/ol.28.001516.
A frequency comb spanning more than one octave has been achieved by injecting the second-harmonic generation (780 nm) of a mode-locked fiber laser (1.56 microm) into a photonic crystal fiber. We propose and realize a novel interferometric scheme for observing the carrier-envelope offset frequency of the frequency comb. Frequency noise has been observed on the measured carrier-envelope offset frequency, which has been confirmed to be generated in the photonic crystal fiber by comparing the measured beat frequencies between cw lasers and frequency combs before and after the photonic crystal fiber. The mode-locked fiber laser is considered to be an important candidate for the light source used in realizing a compact optical frequency measurement system including applications in the telecommunication bands.
通过将锁模光纤激光器（1.56微米）的二次谐波产生（780纳米）注入光子晶体光纤，实现了跨越一个以上倍频程的频率梳。我们提出并实现了一种用于观测频率梳载波包络偏移频率的新型干涉测量方案。在测量的载波包络偏移频率上观测到了频率噪声，通过比较连续波激光器与光子晶体光纤前后频率梳之间测量的拍频，证实该噪声是在光子晶体光纤中产生的。锁模光纤激光器被认为是用于实现包括电信频段应用在内的紧凑型光学频率测量系统的光源的重要候选者。
