Title :
Add-drop multiplexing by grating-induced dispersion in multimode interference device
Author :
Åslund, Mattias ; Poladian, Leon ; Canning, John ; De Sterke, C. Martijn
Author_Institution :
Opt. Fiber Technol. Centre, Sydney Univ., NSW, Australia
Abstract :
We present the design for an add-drop multiplexer using a multimode interference device that supports two modes, and incorporates a Bragg grating. This device only exploits the dispersive aspects of the grating in transmission. The grating induces a wavelength-dependent phase difference between the modes inside the structure, effectively inverting the interference pattern at the output of the device over a small wavelength range whereby add-drop functionality is achieved.
Keywords :
Bragg gratings; coupled mode analysis; light interference; multiplexing equipment; optical communication equipment; optical design techniques; optical dispersion; optical fibre communication; optical waveguide components; wavelength division multiplexing; Bragg grating; add-drop functionality; add-drop multiplexer; add-drop multiplexing; design; dispersive aspects; grating; grating-induced dispersion; interference pattern; modes; multimode interference device; output; small wavelength range; transmission; wavelength-dependent phase difference; Australia; Bragg gratings; Canning; Coupled mode analysis; Interference; Optical fiber dispersion; Optical waveguides; Propagation constant; Throughput; WDM networks;
Journal_Title :
Photonics Technology Letters, IEEE
