球状光纤耦合器的原理和参数设计

根据光线传输的基本原理,通过计算和推导,讨论了为使半导体激光器发出的全部光束能够投射到小球表面,其折射光线能全部进入光纤光芯,并在光芯内全反射传播,小球半径应满足的条件以及半导体激光器光源应安装的位置,并用解析式表达、讨论了在制作和设计球状光纤耦合器时应该注意的参数设计,为球状光纤耦合器的设计提供了理论计算依据。

The Principle and Parameter Design of Coupling Device of Optical Fiber with Spherical Surface

According to the basic principle of light-ray propagation,through calculations and deduction,considering the conditions and all the beams of semiconductor laser can project on the surface of sphere,and all the beams of refraction can couple into the optical fiber and reflect without refraction in it,the radius of sphere should coincide with some conditions and the semiconductor laser should fix at certain range.The parameters design of coupling device with spherical surface are analytically showed and discussed.The result provides a calculating basis for its design theoretically.