Dual ring double filters (band pass filter and channel drop filter) on single layout possess passing and dropping band of wavelengths in two distinct arrangements.

The entire band quality factors of 92.09523 & 505.263 and 124.85019 & 456.8633 are obtained for pass and drop filters of initial set up and amended set up respectively.

These filters have high quality factor with broad and narrow bandwidths of 16.8 nm & 3.04 nm and 12.85 nm & 3.3927 nm.

Two dual ring filters incorporated on a single layout comprises the size of 15×11 μm which can also be used in the integrated photonic chips for ultra-compact unification of devices.