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Abstract

Active temperature compensation for optical devices is typically employed in optical networks in order to ensure that optical wavelength passbands defined by the optical device do not shift significantly in optical wavelength when the optical device is subjected to temperature variations. Shifting of the optical wavelength passbands typically results in optical signals propagating therein to be attenuated in optical power in response to the temperature variation. Although some optical devices, such as those which employ thin film filter technology, do not require active temperature compensation, a majority of waveguide optical device such as array waveguide grating device do require active company temperature compensation. A novel optical device is thus disclosed which facilitates propagation of optical signals therein without relying on temperature compensation schemes.

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