Drive-amplitude-independent Auto Bias Control Circuit for QAM Signals and Its Demonstration with an InP-based IQ Modulator

Conference: ECOC 2016 - 42nd European Conference on Optical Communication
09/18/2016 - 09/22/2016 at Düsseldorf, Deutschland

Proceedings: ECOC 2016

Pages: 3Language: englishTyp: PDF

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Kawakami, Hiroto; Kuwahara, Shoichiro; Hirano, Akira (NTT Network Innovation Laboratories, NTT Corporation, 1-1 Hikari-no-oka, Yokosuka-Shi, Kanagawa, 239-0847 Japan)

A novel auto bias control technique for various types of IQ modulators is proposed. The technique can generate any order quadrature amplitude modulation signals with no dependence on drive amplitude. The measured penalty was found to be almost negligible.