Crosstalk reduction method of AWG using polynomial curves algorithm

摘要

The present invention discloses a method to improve crosstalk properties of the poly-waveguide grating column connects a polynomial curve straight waveguide transition, without loss using the algorithm. These polynomial method to improve the crosstalk characteristics of the waveguide open grid with curved algorithm sin for each of the x-axis in the coordinate of the x and z value gradient in specific dummy parameter t ₀ simply to the dummy parameter and cos in the polynomial curve by using a polynomial curve to use as a value that bridges the straight waveguide without transition loss, and characterized by controlling the length of the polynomial curve by scaling the sin and cos values ​​to a predetermined value, the loss characteristics of the device as well as the exact length of the waveguide constituting the element to be a very important factor in determining the overall properties of the device can implement a more accurate length of the P-curve by modifying the expression of the P-curve algorithm.