Inside the most recent couple of decades, Optoelectronic Data Technologies has created at an awesome speed and turned to become a even more and much more sensible and broadly made use of technologies. The look and improvement of fiber optical communication technologies brings new revolution and vibrant future for the communication business, and pretty much eighty % in the communication service is relying around the optical fiber transmission. Hence, as a functional device, the optical switch becomes the essential element within the optical fiber transmission. Currently, completely different optical switch varieties of optical switches had been created, just like PM switch, micro optical switch and PM optical switch, and every of them plays various part in several fields due to their special characteristics. Optical switch is usually primarily employed within the FITL (fiber-in-the-loop), optical fiber network remote monitoring, optical path creating and optical fiber sensing technique. Along with these fields, optical device testing and study will take fantastic benefit in the optical switch too. So far, varied switch theories and realization strategies of optical switch had been place forward. As outlined by distinctive theories, optical switch will be divided into mechanical optical switch, thermal optical switch, PM optical switch and so on. When optical fiber switch and zero cost space optical switch exchange are diverse in their exchange media. Regardless of how do they differ from one another, optical fiber switch they nevertheless have specific applications in unique particular and have amazing prospective to bring firm good earnings. Except that the forms of optical switch come to be several, technologies applied within the creating method develop into diversiform. With these new technologies, optical switch manufacture includes a way more and much more substantial scale. Plus the switching speed of optical switch has elevated fast as its higher integration. Generally, it has outstanding tendency to create to develop into a a great deal more reputable and energy-saving kind. To enhance the competitors of your manufacture, new technologies which applied in to the creating of optical switch must be certain that that it might improve the productivity. Regardless of how a number of optical switches there have already been, new sorts of switches optical switching will hold on getting created as outlined by new demands. Nevertheless optical switch has terrific market place prospect. And if only the manufactures owns the crucial technologies to make optical switches, the firm will take a big industry share within the future. Using the improvement in the world's optical fiber communications, there might be way more and much more agencies and investigation institutes that step into this field and take efforts to bring in new technologies and broaden the optical switch market place.