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摘要: The autoalignment technique is studied for the PM fiber (PMF) of matching refractiveindex(MRI). The polarization observation by lenseffecttracing technique(POL) is introduced. Based on the POL,an autoalignment system is designed and its performance is then tested. Different lightintensity distribution characteristic is found on the different observation surfaces in a series of experients. The widest range of adjustment is achieved when the observation surface corresponds to a lightintensity distribution with five characteristic points. This means it is easier to focus.The fivepoint method is presented after analysis of the curves of the five characteristic points with respect to the azimuth angle of the optical fiber.By comparison with the POL,this method is easier to be realized and has higher measurement accuracy,so it is suitable for autoalignment system.Abstract: The autoalignment technique is studied for the PM fiber (PMF) of matching refractiveindex(MRI). The polarization observation by lenseffecttracing technique(POL) is introduced. Based on the POL,an autoalignment system is designed and its performance is then tested. Different lightintensity distribution characteristic is found on the different observation surfaces in a series of experients. The widest range of adjustment is achieved when the observation surface corresponds to a lightintensity distribution with five characteristic points. This means it is easier to focus.The fivepoint method is presented after analysis of the curves of the five characteristic points with respect to the azimuth angle of the optical fiber.By comparison with the POL,this method is easier to be realized and has higher measurement accuracy,so it is suitable for autoalignment system.
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Keywords:
- PM fiber of MRI /
- autoalignment /
- light distribution
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