Athermal Arrayed Waveguide Grating Multiplexer

The present invention provides an athermal arrayed waveguide grating wavelength division multiplexer arrayed waveguide grating chip is provided on a substrate having a planar substrate, the optical waveguide provided with an input connected in turn on the substrate, an input slab waveguide, a plurality of slab waveguide, the output slab waveguide and the output optical waveguides, the substrate surface is divided into at least a first portion and a second portion, dividing plane transversely across the input slab waveguide to the output slab waveguide in at least one of which is provided on a substrate slide deflection assembly, the deflection assembly slide ends are fixed to the first portion and the second portion, and a slide assembly having a deflection temperature change with change in the length of the telescopic rod ends, the telescopic rod is provided with a first and a second side wall side of the side walls, the telescopic rod is fixed to the first deflection limiting member, a gap is formed between the inner surface of the first side wall and the first end of the telescopic rod first deflection limiting member at least a portion Wide applicable temperature range of the present invention, a good compensation effect of the center wavelength.