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分析并验证了光纤反射器的透过率在[0,1]范围内与耦合器耦合比偏离50∶50的程度呈二次曲线关系.环形腔中光纤的弯曲对透过率的影响不大,然而径向挤压和扭转通过双折射对透过率的影响比较明显,环境温度则通过耦合比来影响透过率.宽带3dB耦合器构成的反射器,对宽带光波几乎具备“全反射”功能.透过光形成的初期会出现一个脉冲,脉冲的上升沿时间和下降沿时间随入射光强的增加而缩短,脉宽与稳态输出光强则随入射光强的增加而增大.
The transmittance of the fiber reflector was analyzed and verified to have a quadratic curve in the range of [0,1] with the coupler coupling ratio deviation of 50:50. The bending of the fiber in the annular cavity had little effect on the transmittance However, radial squeezing and twisting through the birefringence effect on the transmission is more obvious, the ambient temperature through the coupling ratio to affect the transmittance of broadband 3dB reflector reflector, the broadband light waves with almost “total reflection ”, A pulse will appear in the early stage of light formation. The rising time and falling time of pulse are shortened with the increase of incident light intensity. The pulse width and steady state output light intensity increase with the increase of incident light intensity Big.