Abstract
This paper describes the study on an innovative miniature 1×2 mechanical optical switch with anti-thermal design. Firstly, a novel switch configuration with line-to-line and fiber-to-fiber alignments is designed. An included anti-thermal mechanism is proposed by utilizing materials with different thermal expansion coefficients to compensate the axial misalignment due to ambient temperature changes. Then, parametric programs to automatically generate the solid model and to analyze thermal behavior of the switch are developed. Finally, a prototype is fabricated and the temperature cycling tests of Bellcore specifications are carried out. According to experimental measurements, it is found that the insertion loss of the prototype satisfies the requirements of Bellcore specifications. This 1×2 mechanical optical switch is small, thermally balanced and reliable.
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