Sinusoidally chirped fiber Bragg grating for DWDM applications

Summary form only given. Recently, many new profiles and structures of fiber gratings are proposed and demonstrated for high bandwidth utilization of optical filters. Here, we propose a new fiber grating structure whose period is sinusoidally chirped. The fiber grating provides abrupt-edges and flat-top passband channel with high side lobe suppression (>30 dB). We show uniform multiple wavelength operation by sampling this proposed fiber grating.