We demonstrate a compact ( $367 \times 67 \, \mu {\text{m}}^2$ ) four-channel wavelength division multiplexer using an arrayed waveguide grating based on multimode interference couplers, and built monolithic silicon photonics platform. ...

For the development of minimized and high-rate photonic-integrated fiber Bragg grating interrogation (FBGI) systems, arrayed waveguide (AWG) has been widely used as one critical components. In this paper, we present an 8-channel SOI-based AWG for a photonic integrated FBG microsystem. The channel spacing is designed to be 3 nm meet high-dynamic-range demodulation requirement. core size fabricat...

We performed numerical analysis and design parameter optimization of a silicon-based grating waveguide refractive index (RI) sensor. The performance of the grating waveguide RI sensor was determined by the full-width at half-maximum (FWHM) and the shift in the resonance wavelength in the transmission spectrum. The transmission extinction, a major figure-of-merit of an RI sensor that reflects bo...