Polymeric phased array wavelength multiplexer operating around 1550nm

A polymeric, optical fibre compatible, 8x8 phased array wavelength multiplexer with 400GHz (3.2nm) channel spacing, has been designed and realised for operation in the 1550nm erbium doped fibre amplifier (EDFA) window. By using bending radii as small as 20mm. the device measures only 64x4 mm. The fibre to fibre insertion loss in the passbands varies between 6.6 and 8.0dB and the crosstalk is -25d