Three-dimensional polymer optical waveguide interleaver with selectable channel spacing

Wu, Qiang, Chan, Hau Ping, Chu, Pak L. and Hand, Duncan (2007) Three-dimensional polymer optical waveguide interleaver with selectable channel spacing. Optics Communications, 273 (2). pp. 394-397. ISSN 0030-4018

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Official URL: http://dx.doi.org/10.1016/j.optcom.2007.01.021

Abstract

A polymer optical waveguide interleaver with selectable channel spacing and adjustable flat top based on a three-dimensional structure is reported. This interleaver is made of two waveguides laid in two different but parallel layers. These two waveguides cross-over each other three times, with an electrode heater deposited on top of each crossing point to adjust the coupling ratio between the guides. This 3D structure has many advantages over the corresponding 2D counterpart such as the ease of fabrication and the adjustment of coupling ratio between the two waveguides. The channel spacing can be selected to be either 1.6 nm, 0.8 nm or 0.53 nm simply by changing the power supplied to each heater; also at the 1.6 nm channel spacing it is possible to create a flat-top spectral response (0.6 dB ripple over 0.5 nm), again by tuning the coupling ratios using the electrical heaters.

Item Type: Article
Uncontrolled Keywords: waveguide, selectable, interleaver
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Ay Okpokam
Date Deposited: 27 May 2015 09:39
Last Modified: 29 Feb 2016 14:18
URI: http://nrl.northumbria.ac.uk/id/eprint/22609

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