| Summary: | 碩士 === 中華技術學院 === 機電光工程研究所碩士班 === 93 === The direction coupler is composed by the access waveguide and the coupling section,
when the light by inputs the access waveguide to enter the coupling section, generally
thought the waveguide the essence wants unusual good, but speaking of the system
regulation is unable to achieve 100% essence, when, the present paper simulated the
light by to input the waveguide entered the coupling region part, because inputs the loss
which the waveguide the displacement created. The result discovery input waveguide
suitable displacement can the effective promotion coupling efficiency. Take this as the
foundation, we proposed substitutes for the input waveguide by the PSW’s, our visible
this overhead construction is a continuously displacement the bending waveguide.
This novel access waveguide overhead construction not only can the
effective promotion coupling efficiency, simultaneously reduce the length
to reach 7,600 μm, also no matter is regarding InGaAs/InP or the SiO2 two
kind of different materials all have the similar effect. Finally we use three
groups of directions couplers, unifies the new input waveguide overhead
construction string which we proposed to connect a group of 2X6 light
switch, the light switch are partial we to choose the SiO2 material to do for
simulates the base material.
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