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Proceedings Paper

A simple integrated ratiometric wavelength monitor based on multimode interference structure
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Paper Abstract

Wavelength measurement or monitoring can be implemented using a ratiometric power measurement technique. A ratiometric wavelength monitor normally consists of a Y-branch splitter with two arms: an edge filter arm with a well defined spectral response and a reference arm or alternatively, two edge filters arms with opposite slope spectral responses. In this paper, a simple configuration for an integrated ratiometric wavelength monitor based on a single multimode interference structure is proposed. By optimizing the length of the MMI and the two output port positions, opposite spectral responses for the two output ports can be achieved. The designed structure demonstrates a spectral response suitable for wavelength measurement with potentially a 10 pm resolution over a 100 nm wavelength range.

Paper Details

Date Published: 27 September 2008
PDF: 8 pages
Proc. SPIE 7100, Optical Design and Engineering III, 710023 (27 September 2008); doi: 10.1117/12.797670
Show Author Affiliations
Agus Muhamad Hatta, Dublin Institute of Technology (Ireland)
Gerald Farrell, Dublin Institute of Technology (Ireland)
Qian Wang, Data Storage Institute (Singapore)

Published in SPIE Proceedings Vol. 7100:
Optical Design and Engineering III
Laurent Mazuray; Jean-Luc Tissot; Jeffrey M. Raynor; Rolf Wartmann; Andrew Wood, Editor(s)

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