| 摘要 |
A planar lightwave apparatus includes a planar lightwave circuit (PLC) chip, a fiber array block (FAB) assembled to one face of the PLC chip, and a casing with one opening, wherein one end of the FAB extends out of the opening of the casing. The PLC chip includes an input optical waveguide, a plurality of output optical waveguides and a beam splitter for connecting the input optical waveguide and the output optical waveguides. The input optical waveguide and the output optical waveguides are arranged on the same face of the PLC chip. Therefore, the PLC chip needs only one-time coupling process with the FAB. The coupling process can be simplified and the packaging cost is reduced.
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