Spatial laser communication all optical signal intensity equalizing device
An optical signal and equalization technology, applied in the field of optical communication, achieves the effect of overcoming slow and inflexible response speed, strong feasibility and realizability, and simple production
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[0023] figure 1 The balance device shown includes a focusing lens, a liquid crystal tank, a nematic liquid crystal mixed solution and a diaphragm. The liquid crystal tank further includes a base layer, a transparent conductive layer, a polymer layer and an adhesive sealing ring.
[0024] The preparation method of nematic liquid crystal mixed solution is as follows:
[0025] 1. Mixed liquid crystal E7 composed of 4 different liquid crystals, of which 5CB accounted for 51%, while 7CB, 08CB and 5CT accounted for 25%, 16% and 8% respectively;
[0026] 2. Add methyl red (Methyl-Red) to the liquid crystal E7, the concentration is 0.8%;
[0027] 3. Ultrasonic dispersion of SWNT in alcohol at a concentration of 0.005%;
[0028] 4. Drop the SWNT / alcohol solution into the liquid crystal E7 that has dissolved the methyl red to ensure its concentration is 0.002%;
[0029] 5. Heat the above mixed solution at 60°C until the alcohol is completely volatilized and the carbon tubes are even...
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