Arrayed waveguide gratings (AWGs) are commonly used as multiplexers/demultiplexers in wavelength division multiplexing systems. We design and fabricate a coarse wavelength division multiplexing AWG with a wide free-spectral range. A gull-wing-shaped AWG layout and S-shaped AWG layout are used to understand a wide band range. The spectral difference between each layout is experimentally demonstrated. Our results indicate that the fabricated AWG is suitable for applications such as portable power meters.