| 发明名称 |
APPARATUS AND METHOD FOR MEASURING IQ IMBALANCE FOR OPTICAL RECEIVER |
| 摘要 |
Provided is an apparatus and method for measuring IQ imbalance, and in particular, is an apparatus and method for measuring IQ imbalance for an optical receiver. The apparatus for measuring IQ imbalance for an optical receiver includes a light generating unit generating optical and reference signals to provide the optical and reference signals to an optical receiver, a graph creating unit creating a Lissajous figure by using an in-phase (I) signal and a quadrature-phase (Q) signal output from the optical receiver in response to the optical and reference signals, and a calculating unit calculating IQ imbalance for the optical receiver with reference to the Lissajous figure. |
| 申请公布号 |
US2014169786(A1) |
申请公布日期 |
2014.06.19 |
| 申请号 |
US201314027445 |
申请日期 |
2013.09.16 |
| 申请人 |
Electronics and Telecommunications Research Institute |
发明人 |
YOUN Chun Ju;KIM Jong-Hoi;CHOE Joong-Seon;KIM Duk Jun;KWON Yong-Hwan;NAM Eun Soo |
| 分类号 |
H04B10/077 |
主分类号 |
H04B10/077 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. An apparatus for measuring IQ imbalance, the apparatus comprising:
a light generating unit generating optical and reference signals to provide the optical and reference signals to an optical receiver; a graph creating unit creating a Lissajous figure by using an in-phase (I) signal and a quadric-phase (Q) signal output from the optical receiver in response to the optical and reference signals; and a calculating unit calculating IQ imbalance for the optical receiver refer to the Lissajous figure.
|
| 地址 |
Daejeon KR |
