求翻译：最简单的光学双稳器件是在光学谐振腔中放置一块非线性介质构成。光学谐振腔有两类：一是非线性F-P型光学谐振腔，它是由两块光学反射镜组成的共振腔，如图5.1.4所示；另一是环型光学谐振腔，它是由具有两个光耦合器的波导（或光纤）的环形共振腔构成，如图5.1.5所示。由图中可见，这两种光学双稳器件都存在着两个输出端：透射输出端和反射输出端。二者分别存在着透射型和反射型的光学双稳特性。是什么意思？

The most simple optical bistable device is placed in the optical resonator and a nonlinear medium constitute. Optical resonator there are two types: First, the nonlinear fp optical resonator, it is composed of two optical reflector cavity, as shown in Figure 5.1.4; another ring optical resonator, it

The most simple optical devices are dual-voltage regulator in the optical cavity in a non-linear media. Optical resonant cavity are of two kinds: one is non-linear optical F - P resonant cavity, it is composed of two optical mirrors of the resonant cavity, as shown in Figure 5.1 .4, and the other is

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Most simple optical bistable device was placed in a cavity of a non-linear media form. Optical resonator has two classes: one is a nonlinear optical resonator of p type, which is made up of two pieces of optical reflection mirror resonant cavity, as shown in Figure 5.1.4; the other is a ring-type op

The simple optics bistable component is lays aside together the non-linear medium constitution in the optical resonator.The optical resonator has two kinds: One is the non-linear F-P optical resonator, it is the resonant cavity which is composed by two optics reflectors, as shown in Figure 5.1.4; An