MMI-based ultra linear electro-optic modulator with high output RF gain

被引：6

作者：

Yue, Peng ^{[1
]}

Yi, Xiang ^{[1
]}

Li, Qian-Nan ^{[1
]}

Wang, Tuo ^{[1
]}

Liu, Zeng-Ji ^{[1
]}

机构：

[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China

来源：

OPTIK | 2013年 / 124卷 / 17期

关键词：

Electro-optic modulator; Multimode interference (MMI) coupler; Microring resonator; Spurious-free-dynamic-range (SFDR); Output RF gain; RADIO; WIRELESS;

D O I：

10.1016/j.ijleo.2012.07.039

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A compact modulator with both ultra-linearity and high output RF gain is proposed and analyzed theoretically. It is implemented by a combination of a 1 x 2 multimode interference (MMI) coupler and an integrated Mach-Zehnder interferometer (MZI) modulator consisting of a microring and a phase modulator (PM). Due to the application of MMI coupler, traditional direct current (DC) bias circuits can be omitted, leading to reduced device complexity and increased device stability. Besides, this design shows a feature of maintaining both large output RF gain (1.1, 1.96 times larger than MZI and ring-assisted MZI (RAMZI) respectively) and high linearity performance (spurious-free-dynamic-range (SFDR) value is 133.5 dB and linearity range m is 84.4%) simultaneously. (C) 2012 Elsevier GmbH. All rights reserved.

引用

页码：2623 / 2626

页数：4

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