Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong.
Opt Lett. 2010 Jul 15;35(14):2427-9. doi: 10.1364/OL.35.002427.
We demonstrate a dispersion-tuned fiber optical parametric oscillator (FOPO)-based swept source with a sweep rate of 40 kHz and a wavelength tuning range of 109 nm around 1550 nm. The cumulative speed exceeds 4,000,000 nm/s. The FOPO is pumped by a sinusoidally modulated pump, which is driven by a clock sweeping linearly from 1 to 1.0006 GHz. A spool of dispersion-compensating fiber is added inside the cavity to perform dispersion tuning. The instantaneous linewidth is 0.8 nm without the use of any wavelength selective element inside the cavity. 1 GHz pulses with pulse width of 150 ps are generated.
我们演示了一种基于色散调谐光纤参量振荡器（FOPO）的扫频源，其扫频速率为 40 kHz，波长调谐范围为 1550nm 左右的 109nm。累计速度超过 4000000nm/s。FOPO 由正弦调制泵浦驱动，泵浦由从 1GHz 线性扫频到 1.0006GHz 的时钟驱动。在腔体内添加了一段色散补偿光纤，以进行色散调谐。在腔体内不使用任何波长选择元件的情况下，瞬时线宽为 0.8nm。产生了 1GHz 脉冲宽度为 150ps 的脉冲。
