Resonant reflector for increased wavelength and polarization control

This invention relates to the field of optoelectronic devices, and more particularly to resonant reflectors for use with optoelectronic devices. An optical system that includes at least two optical emitters and/or optical receivers that have a corresponding guided-mode grating resonant reflector fil...

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Bibliographic Details
Main Authors Cox, James A, Morgan, Robert A
Format Patent
LanguageEnglish
Published 28.12.2004
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Summary:This invention relates to the field of optoelectronic devices, and more particularly to resonant reflectors for use with optoelectronic devices. An optical system that includes at least two optical emitters and/or optical receivers that have a corresponding guided-mode grating resonant reflector filter (GMGRF). Each GMGRF is preferably tuned to a unique wavelength and/or polarization by adjusting selected GMGRF parameters, such as the grating period and/or the thickness of the grating or other layers. One advantage of this construction is that the various optical emitters and/or optical receivers may be finely tuned, often lithographically, to provide fine wavelength resolution and/or polarization control. For WDM and WDD applications, this may allow closely-spaced optical transmission channels, and may simplify the wavelength-selective WDM and WDD operations required for simultaneous transmission of the channels.