A Software-Based and Dither-Less Modulators Bias Control Technique

Autor: Hao, Yan Fei, Zhang, Yan Gan, Li, Yv Peng
Zdroj: Applied Mechanics and Materials; September 2013, Vol. 411 Issue: 1 p828-831, 4p
Abstrakt: A software-based bias control system of push-pull Mach-Zehnder Modulators (MZMs) without dither tone is described in this paper. The slope of the average optical output power respect to the bias voltage is used to control the operating bias points in the automatic control system. The paper analyses the theory of automatic bias control intensively and verifies the effectiveness of the proposed technique which is a modulation-format-free method under the RF signal through testing and contrasting the BER (bit error rate) between the new technique and manual measure on the experimental platform.
Databáze: Supplemental Index