Advances and challenges in vector modulation technologies

被引：0
|
作者：
Kawanishi, Tetsuya [1 ]
Sakamoto, Takahide [1 ]
Chiba, Akito [1 ]
机构：
[1] Natl Inst Informat & Commun Technol, Tokyo, Japan
来源：
BROADBAND ACCESS COMMUNICATION TECHNOLOGIES III | 2009年 / 7234卷
关键词：
Optical modulator; lithium niobate; Mach-Zehnder interferometer; OPTICAL FREQUENCY SWEEP; FSK MODULATOR; DQPSK; TRANSMISSION;
D O I：
10.1117/12.816361
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper describes recent progress of high-speed vector optical modulation technologies based on Mach-Zehnder interferometer devices. Multi-level quadrature amplitude modulation signal can be synthesized by using parallel Mach-Zehnder modulators. We can generate complicated multi-level optical signals from binary data streams, where binary modulated signals are vectorially summed in optical circuits. Modulation speed can be higher than 80 Gbaud by using a dual parallel Mach-Zehnder modulator with thin lithium niobate substrate.
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页数：10
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