An EMLTO-CAN Component Testing System and Method
By combining focal length and spectral testing and using multimode fiber for single coupling, the problem of low testing efficiency of EML TO-CAN components was solved, realizing an efficient testing process and improving production efficiency and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN YUNLING OPTOELECTRONICS CO LTD
- Filing Date
- 2024-10-18
- Publication Date
- 2026-06-16
AI Technical Summary
Existing EML TO-CAN components suffer from low spectral performance and focal length testing efficiency, especially due to the bottleneck in testing efficiency caused by two fiber couplings.
The focal length and spectral measurements are combined into one, using multimode fiber for single coupling, and the test is performed by combining an altitude probe and a spectrometer to calculate the focal length and spectral data.
This greatly improved testing efficiency, shortened testing time, increased production capacity, and achieved cost reduction and efficiency improvement.
Smart Images

Figure CN119354492B_ABST