首页> 外文会议>Conference on Optical Transmission Systems and Equipment for WDM Networking, Jul 29-31, 2002, Boston, USA >Measurement of gain tilt and its contribution to CSO in the analog/digital transmission systems with Er/Yb fiber amplifiers
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Measurement of gain tilt and its contribution to CSO in the analog/digital transmission systems with Er/Yb fiber amplifiers

机译:使用Er / Yb光纤放大器在模拟/数字传输系统中测量增益倾斜及其对CSO的贡献

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摘要

Fiber optic based analog and/or digital CATV systems experience composite second order distortion (CSO) caused by the interaction between the gain tilt of the doped fiber amplifier and the laser chirp due to modulation. The gain tilt for an analog/digital transmission system using a high power Er-Yb co-doped fiber amplifier has been experimentally measured and its contribution to the CSO of the transmission system is evaluated. The results are in good agreement when compared with the direct measurement of the CSO of the system with and without the amplifier. The dependence of the gain tilt on the input light modulation frequency and the input light wavelength is also investigated.
机译:基于光纤的模拟和/或数字CATV系统会遇到复合二阶失真(CSO),这是由于调制导致的掺杂光纤放大器的增益倾斜与激光tilt之间的相互作用所引起的。已经通过实验测量了使用高功率Er-Yb共掺杂光纤放大器的模拟/数字传输系统的增益倾斜,并评估了其对传输系统CSO的贡献。与直接测量带或不带放大器的系统的CSO相比,结果吻合良好。还研究了增益倾斜对输入光调制频率和输入光波长的依赖性。

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