Compact wavelength router based on a Silicon-on-insulator arrayed waveguide grating pigtailed to a fiber array

Opt Express. 2006 Jan 23;14(2):664-9. doi: 10.1364/opex.14.000664.

Abstract

We demonstrate a compact, fiber-pigtailed, 4-by-4 wavelength router in Silicon-on-insulator photonic wires, fabricated using CMOS processing methods. The core is an AWG with a 250GHz channel spacing and 1THz free spectral range, on a 425x155 microm(2) footprint. The insertion loss of the AWG was reduced to 3.5dB by applying a two-step processing technique. The crosstalk is -12dB. The device was pigtailed using vertical fiber couplers and an eight-fiber array connector.