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Ultra Linear Modulator with High Output RF Gain Using a 12 MMI Coupler
Peng YUE Qian-nan LI Xiang YI Tuo WANG Zeng-ji LIU Geng CHEN Hua-xi GU
IEICE TRANSACTIONS on Electronics
Publication Date: 2012/12/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: BRIEF PAPER
Category: Lasers, Quantum Electronics
Electro-optic modulator, multimode interference (MMI) coupler, microring resonator, spurious-free-dynamic-range (SFDR), output RF gain,
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A novel and compact electro-optic modulator implemented by a combination of a 12 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.