Amplified-spontaneous-emission feedback circuit scheme for optical measurement with improved optical power resolutions

被引：2
作者：
Masuda, Hiroji [1 ]
Biswas, Biswajit [1 ]
Islam, Md Syful [1 ]
Kitamura, Kokoro [1 ]
机构：
[1] Shimane Univ, Grad Sch Nat Sci & Technol, 1060 Nishi Kawatsu, Matsue, Shimane 6908504, Japan
来源：
IEICE COMMUNICATIONS EXPRESS | 2022年 / 11卷 / 01期
关键词：
optical power measurement; resolution; amplified spontaneous emission; feedback; SENSOR;
D O I：
10.1587/comex.2021XBL0189
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：
We proposed a novel optical power measurement scheme, which significantly improved optical power resolution (OPR) by implementing an amplified-spontaneous-emission feedback circuit (ASEFC) ahead of a conventional optical power meter. The scheme was named "ASEFC scheme." The ASEFC operates in regions near the lasing threshold. The OPR characteristics of the ASEFC scheme were clarified experimentally. We demonstrated significantly improved OPRs in optical loss measurement of an optical component. The OPRs were less than 0.00014 dB, and the sensitivity was greater than 67, at a display resolution of 0.01 dB for the power meter.
引用
收藏
页码：46 / 51
页数：6
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