Impact resistant optical waveguide and method of manufacture thereof
An optical waveguide, wavelength technology, applied in the direction of light guide, optics, optical components, etc., can solve the problem of increasing the cost of the sensor in the process steps
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Embodiment 1
[0053]By mixing 60g Base, 115g dimethylvinylsiloxy terminated poly(dimethylsiloxane / phenylmethylsiloxane), 3.9g crosslinker, 2.4g chain extender, 0.013g catalyst and 0.03g Surfynol 61, to prepare a core composition. Base contains 32% hexamethyldisilazane treated fumed silica and 68% has a refractive index range of 1.465-1.475, a viscosity range of 1425-2600cSt at 25°C and a vinyl content range of 0.67-0.78 % of phenylmethylvinylsiloxy terminated poly(dimethylsiloxane / phenylmethylsiloxane). The crosslinking agent is a Si-H content range of 0.71-0.85% and a viscosity of 5cSt (mm 2 / s) of trimethylsiloxy-terminated poly(dimethylsiloxane / methylhydrogensiloxane). The chain extender was dimethylhydrogensiloxy terminated polydimethylsiloxane available from Gelest Inc. The catalyst was a mixture containing 0.8% platinum and tetramethyldivinylsiloxane. Surfynol 61 is 3,5-dimethyl-1-hexyn-3-ol available from Nissan Chemical Industry Co., Ltd.
[0054] The mixture was first degassed...
Embodiment 2
[0057] By mixing 60g Base, 115g dimethylvinylsiloxy terminated poly(dimethylsiloxane / phenylmethylsiloxane), 3.9g crosslinker, 2.4g chain extender, 0.013g catalyst and 0.03g Surfynol 61, to prepare a core composition. Base, crosslinking agent, chain extender, catalyst and Surfynol are the same as in Example 1.
[0058] The mixture was first degassed under vacuum ( Inside Laboratory Tubing. The resulting article was placed in an oven and heated at 150° C. for 1 hour to prepare a waveguide. Remove the waveguide from the oven and cool to room temperature. Remove the core 0.5 cm from the end with a spatula. Fill the tube with a few drops of the uncured mixture prepared above. The article was vacuum degassed again. Fill the end of the pipe again with the uncured mixture. A 3 mm diameter LED light source obtained from Fiber Optic Products, Inc. was pushed into the tube. The resulting article was placed in an oven and heated for 30 minutes. This fixes the LED within the result...
Embodiment 3
[0062] A 36 cm long SILASTIC manufactured by Dow Corning Corporation was filled with the core composition Laboratory Tubing (1 / 4"ID, 3 / 8"OD). By mixing 60g Base, 115g dimethylvinylsiloxy terminated poly(dimethylsiloxane / phenylmethylsiloxane), 3.9g crosslinker, 2.4g chain extender, 0.013g catalyst and 0.03 g Surfynol 61, to prepare the core composition. Base, crosslinking agent, chain extender, catalyst and Surfynol are the same as in Example 1. The mixture was first degassed under vacuum (<20 Torr) at room temperature. The syringe is then filled with this substance and used to push into the tubing. Push 3mm LED light emitters and detectors (from Radio Shack) into each end of the tube. The tubing was placed in an oven and heated at 150°C for 1 hour.
[0063] Compression distance (mil)
Output power(mW)
0
538
20
466
40
394
60
328
80
265.8
100
207.2
120
158.8
...
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