Photonic channelization

The photonic extraction channelization technique generally experiences more attenuation than the suppression technique. Once a channel has been extracted from the spectrum, additional channels may be extracted from the remaining undisturbed spectrum but experience additional attenuation. The channels in this technique are heavily influenced by the shape of the optical filter.The photonic suppression channelization technique requires parallel optical methods to achieve multiple channels because each optical spectrum is manipulated to produce the desired channel. This technique generally experiences less attenuation than the extraction technique and the resulting channel are less influenced by the shape of the optical filter.