Two-tone intensity-modulated optical stimulus for self-referencing microwave characterization of high-speed photodetectors

被引：18
|
作者：
Wang, Heng [1 ]
Zhang, Shangjian [1 ,2 ]
Zou, Xinhai [1 ]
Zhang, Yali [1 ]
Lu, Rongguo [1 ]
Zhang, Zhiyao [1 ,2 ]
Zhang, Xiaoxia [1 ]
Liu, Yong [1 ,2 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Optoelect Informat, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
[2] Univ Elect Sci & Technol China, Collaborat Innovat Ctr Elect Mat & Devices, Chengdu 610054, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2016年 / 373卷
基金：
中国国家自然科学基金;
关键词：
Frequency response; Photodetectors; Two-tone modulation; Microwave photonics; FREQUENCY-RESPONSE MEASUREMENTS; CALIBRATION; NOISE;
D O I：
10.1016/j.optcom.2015.08.028
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The two-tone intensity modulated optical stimulus is proposed and demonstrated for measuring the high-frequency response of photodetectors. The method provides a narrow linewidth and wide bandwidth optical stimulus based on the two-tone modulation of a Mach-Zehnder electro-optical intensity modulator, and achieves the self-referenced measurement of photodetectors without the need for correcting the power variation of optical stimulus. Moreover, the two-tone intensity modulation method allows bias-independent measurement with doubled measuring frequency range. In the experiment, the consistency between our method and the conventional methods verifies the simple but accurate measurement. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：110 / 113
页数：4
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