U. Mankong, Tanawant Tangmala, K. Inagaki, Kanno Atsushi, T. Kawanishi
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Direct chirp measurement in vector space of electroabsorption modulator
We propose a novel method to measure chirp of an electro-absorption modulator in vector space due to intensity modulation at any frequency using optical homodyne quadrature demodulation technique. Chirp parameters are directly obtained in the small-signal vector space, enabling practical chirp assessment for advanced modulation optical transmission.