Ultra Linear Modulator with High Output RF Gain Using a 1×2 MMI Coupler

Peng YUE; Qian-nan LI; Xiang YI; Tuo WANG; Zeng-ji LIU; Geng CHEN; Hua-xi GU

doi:10.1587/transele.E95.C.1883

Regular Section

Ultra Linear Modulator with High Output RF Gain Using a 1×2 MMI Coupler

Peng YUE, Qian-nan LI, Xiang YI, Tuo WANG, Zeng-ji LIU, Geng CHEN, Hua-xi GU

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Keywords: Electro-optic modulator, multimode interference (MMI) coupler, microring resonator, spurious-free-dynamic-range (SFDR), output RF gain

JOURNAL RESTRICTED ACCESS

2012 Volume E95.C Issue 12 Pages 1883-1886

DOI https://doi.org/10.1587/transele.E95.C.1883

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Abstract

A novel and compact electro-optic modulator implemented by a combination of a 1×2 multimode interference (MMI) coupler and an integrated Mach-Zehnder interferometer (MZI) modulator consisting of a microring and a phase modulator (PM) is presented and analyzed theoretically. It is shown that the proposed modulator offers both ultra-linearity and high output RF gain simultaneously, with no requirements for complicated and precise direct current (DC) control.

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