Flattop tunable dense-wavelength division-multiplexing filter-modulator

Document Type

Article

Publication Date

1-1-2004

Abstract

For spectral filters with subnanometer bandwidth, precise control of the device components' dimensions ( error < λ/1000, where k is the center wavelength) is critical. Theoretical results from the transfer-matrix method show that an electro-optic thin-film filter can have a subnanometer bandwidth and still tolerate a root-mean-square error in the thickness of each layer up to λ/100. Illustrative examples of an electro-optic thin-film spectral filter with 0.05-nm (6-GHz), -3-dB bandwidth are presented. © 2004 Optical Society of America.

Publication Title

Journal of the Optical Society of America B: Optical Physics

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