研究目的
Investigating the macro bending effect in optical fiber unit of optical fiber composite low voltage cable (OPLC) that occurs in handling and installation process of the cable to minimize the macro bending loss in signal attenuation.
研究成果
The study suggests that in installing the OPLC cable, the minimum bending radius should be more than 15 mm to avoid the macro bending loss to occur in the transmission of a light signal in single mode optical fiber G657A2. The critical radius for the optical fiber G657A2 is 7.5 mm, beyond which the attenuation loss becomes unacceptable.
研究不足
The study focuses on the macro bending loss in the installation process of OPLC cable, specifically for the model OPLC-YJV-0.6/1kV-3*4+GT2-4B1. The critical and suggested radii are proposed based on the specific conditions and materials used in the study.
1：Experimental Design and Method Selection:
The study involves simulation using COMSOL to measure the attenuation loss in bending the cable at the suggested radius and experimental analysis to investigate the attenuation loss at different bending radius and number of turns.
2：Sample Selection and Data Sources:
The single mode optical fiber G657A2 is used in the optical unit of OPLC for transmission.
3：List of Experimental Equipment and Materials:
Fixed light source (Fiberlabs-ASE-1550-25), power energy meter PM320E, and optical fiber G657A
4：Experimental Procedures and Operational Workflow:
The experiment is done with the ambient temperature of 20 °C, using a fixed light source to transmit light of 1550 nm wavelength in the single mode fiber as an input, and the power energy meter to measure the output power and the attenuation loss.
5：Data Analysis Methods:
The attenuation loss is calculated using the mathematical formula provided in the paper.
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