Programmable Electrooptic Wavelength Filter Using Cascaded Mode Converters

Hideaki OKAYAMA  

IEICE TRANSACTIONS on Electronics   Vol.E86-C    No.5    pp.777-780
Publication Date: 2003/05/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
wavelength filter,  electrooptic effect,  mode converter,  waveguide,  

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A new device structure for electrooptic tunable wavelength filter is reported. Finger electrode electrooptic mode converters are placed on an optical waveguide. The drive voltage amplitude is changed along the propagation distance with a sinusoidal function. Changing the spatial period of sinusoidal voltage results in wavelength tuning. Structure uses interleaved mode converter groups generating cosine and sine function mode conversion strengths.