Park N, Dawson J W, Vahala K J
Opt Lett. 1992 Sep 15;17(18):1274-6. doi: 10.1364/ol.17.001274.
The single-mode linewidth of an erbium-doped, single-frequency, fiber ring laser has been measured by using a newly developed loss-compensated delayed self-heterodyne interferometer that has a resolution of less than 600 Hz. The natural linewidth is determined to have an upper bound of less than 2 kHz. In addition, frequency jitter was found to be dominant over the natural mately 4 kHz.
采用一种新开发的分辨率小于600Hz的损耗补偿延迟自外差干涉仪,测量了掺铒单频光纤环形激光器的单模线宽。确定其固有线宽上限小于2kHz。此外,发现频率抖动比固有线宽大,约为4kHz。