Fig. 2From: Tunable narrow-band single-channel add-drop integrated optical filter with ultrawide FSROptical simulations of the filter. a Calculated transmission spectra of the filter in the wavelength range of 1400–1630 nm at drop ports (D1 and D2) and through port (T1). b Simulated electric field distribution at 1400, 1516, and 1620 nm wavelengthsBack to article page