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Opt Express. 2009 Aug 3;17(16):14015-22.

An Opto-VLSI-based reconfigurable optical adddrop multiplexer employing an off-axis 4-f imaging system.

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1
Centre of Excellence for MicroPhotonic Systems, Edith Cowan University, Joondalup, WA 6027, Australia. m.shen@ecu.edu.au

Abstract

A novel reconfigurable optical add-drop multiplexer (ROADM) structure is proposed and demonstrated experimentally. The ROADM structure employs two arrayed waveguide gratings (AWGs), an array of optical fiber pairs, an array of 4-f imaging microlenses that are offset in relation to the axis of symmetry of the fiber pairs, and a reconfigurable Opto-VLSI processor that switches various wavelength channels between the fiber pairs to achieve add or drop multiplexing. Experimental results are shown, which demonstrate the principle of add/drop multiplexing with crosstalk of less than -27dB and insertion loss of less than 8dB over the Cband for drop and through operation modes.

PMID:
19654810
[Indexed for MEDLINE]
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