Center for Information Photonics & Communications, School of Information Science & Technology, Southwest Jiaotong University, Chengdu, Sichuan, China.
Opt Lett. 2013 Jul 15;38(14):2391-3. doi: 10.1364/OL.38.002391.
A method to improve the linearity of the analog photonic link is proposed and experimentally demonstrated, which consists of a phase modulator and an optical tunable bandpass filter. By carefully optimizing the bandwidth and center wavelength of the filter, we can significantly suppress the third-order intermodulation distortion by ~32 dB. Subsequently the spurious-free dynamic range of the link is improved by ~14 dB.
提出并实验验证了一种改善模拟光链路线性度的方法，该方法由相位调制器和光可调谐带通滤波器组成。通过仔细优化滤波器的带宽和中心波长，可以将三阶互调失真抑制约 32dB。随后，链路的无杂散动态范围提高了约 14dB。
