Photonic Digital-to-Analog Converter Based on Summing of Serial Weighted Multiwavelength Pulses

被引：35
作者：
Peng, Yue [1 ]
Zhang, Hongming [1 ]
Zhang, Yuancheng [1 ]
Yao, Minyu [1 ]
机构：
[1] Tsinghua Univ, State Key Lab Integrated Optoelect, Tsinghua Natl Lab Informat Sci & Technol, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2008年 / 20卷 / 21-24期
关键词：
Digital-to-analog conversion; electrooptic modulator (EOM); analog optical signal processing; photonic digital-to-analog converter (PDAC);
D O I：
10.1109/LPT.2008.2007502
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：
A novel photonic digital-to-analog converter (PDAC) scheme based oil summing or serial weighted multiwavelength pulses is proposed and experimentally demonstrated. The weighted multiwavelength pulses are delayed and summed in time domain through dispersion, and each weighted pulse with specific wavelength corresponds to a bit of input digital data. Regardless of the resolution, this scheme only requires one electrooptic modulator (EOM). In lite experiment, a 3-bit PDAC with a sample rate of 2.5 GS/s is realized, and the input digital signal is mapped to ail analog output linearly by a transfer function. This simple and compact setup could reduce the system complexity and avoid the synchronization of multiple EOMs.
引用
收藏
页码：2135 / 2137
页数：3
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