Method of mirror layout of multi-level optical switch

A method of mirror layout inside a multi-level optical switch having a plurality of input terminals, a plurality of output terminals and a rectangular matrix internal structure, such that the input terminals are an integral power of 2 in number, comprising steps of:

• installing a first fixed single-sided reflecting mirror and a second fixed single-sided reflecting mirror such that reflecting surfaces of the first and the second fixed single-sided reflecting mirrors face each other and are parallel to each other, and such that a region having a plurality of optical path cross-points for accommodating double-sided reflecting mirrors is also formed between the first and the second reflecting mirrors;
• dividing the input terminals into an odd group and an even group;
• computing optical path cross-points by feeding input light paths from the odd group and the even group using a network exchange algorithm;
• and
• installing double-sided reflecting mirrors at the corresponding optical path cross-points in the double-sided reflecting mirror layout region of the multi-level optical switch.

A method for laying out mirrors inside a multi-level optical switch consisting of a rectangular matrix, wherein the multi-level optical switch comprises a plurality of input terminals and a plurality of output terminals, such that the input terminals are an integral power of 2 in number, comprising the steps of:

• installing a first fixed single-sided reflecting mirror and a second fixed single-sided reflecting mirror such that reflecting surfaces of the first and the second fixed single-sided reflecting mirrors face each other and are parallel to each other, and such that a region having a plurality of optical path cross-points for accommodating double-sided reflecting mirrors is also formed between the first and the second reflecting mirror;
• dividing the input terminals into an odd group and an even group;
• computing optical path cross-points by feeding input light paths from the odd group and the even group using a network exchange algorithm;
• and
• installing double-sided reflecting mirrors at the corresponding optical path cross-points in the double-sided reflecting mirror layout region of the multi-level optical switch.