1：Experimental Design and Method Selection:

The study used pull-out tests to evaluate interfacial adhesion, adapted from micromechanical tests. Methods included optical microscopy and SEM analysis for interface characterization. Theoretical models from literature (e.g., Kelly et al., Nairn et al., Jiang et al.) were employed to calculate interfacial shear strength, maximum interfacial strength, and critical energy.

2：Sample Selection and Data Sources:

Four types of optical fibres with different coatings (polyimide, polyacrylate, ormoceramic) and diameters were used, supplied by FBGS Technologies, Germany. An epoxy resin E-227 (PROCHIMA, England) was used for the matrix. Samples were produced with specific embedded lengths.

3：List of Experimental Equipment and Materials:

Equipment included a mould for sample production, Instron 4302 testing machine with 1 kN load cell, optical microscope, Carl ZEISS EVO MA 10 SEM, JSM-7100F-JEOL SEM, sputter coater, and LOCTITE Hysol? 3425 adhesive. Materials included optical fibres, epoxy resin, alcohol for cleaning, and fibreglass tabs.

4：Experimental Procedures and Operational Workflow:

Fibres were cut to 90 mm, cleaned with alcohol, inserted into a mould with embedded lengths, resin was applied and cured at 80°C for 5 hours. Tabs were bonded to fibres for testing. Pull-out tests were conducted at 0.5 mm/min displacement rate using RTC method. Microscopy and SEM analyses were performed post-test to examine interfaces.

5：5 mm/min displacement rate using RTC method. Microscopy and SEM analyses were performed post-test to examine interfaces. Data Analysis Methods:

5. Data Analysis Methods: Data from force-displacement curves were analyzed using equations for interfacial shear strength (τISS), maximum interfacial strength (τD), and critical energy (GC). Statistical methods were not specified, but averages were reported.