Park, Vaughan, Fleming & Dowler LLP
Pulse-width-modulated thermal tuning of optical devices
An optical device that includes a wavelength-sensitive optical component, which has an associated thermal time constant, is described. Note that an operating wavelength of the wavelength-sensitive optical component is a function of several physical parameters including temperature. Moreover, the optical device includes a heating mechanism that provides heat to the wavelength-sensitive optical component. Furthermore, the optical device includes a driver circuit that provides a pulse-width modulated signal to the heating mechanism. Note that an average pulse-width modulated heat provided by the heating mechanism, and which corresponds to the pulse-width modulated signal, thermally tunes the wavelength-sensitive optical component to a target operating wavelength. Additionally, note that the target operating wavelength corresponds to a target operating temperature of the wavelength-sensitive optical component.
Oracle International Corporation
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Ronald Ashok V. Frankie Y. Dinesh D.
Ho Krishnamoorthy Liu Patil