Title:
APPARATUS AND METHOD FOR DIFFERENTIAL THERMAL OPTICAL SWITCH CONTROL
Document Type and Number:
WIPO Patent Application WO/2015/078339
Kind Code:
A2
Abstract:
Embodiments are provided for an apparatus and method for differential thermal optical switch control. The optical switch is operated based on the interferometric principle by modifying the optical phase between waves propagating in waveguides via refractive index change in the waveguides using the thermo-optic effect. A heat pump designed as part of the optical switch is used to generate a temperature difference across the waveguides based on the thermo-electric effect. The thermo-electric effect is obtained using thermo-electric material or elements, also referred to as Peltier elements. An embodiment apparatus includes a dielectric base, a pair of waveguides extended in parallel on the dielectric base, and on the dielectric base a thermo-electric material in contact with the pair of waveguides. Additionally, a pair of electrodes extended, on the thermo-electric material, next to and along the length of the waveguides.
Inventors:
SVILANS MIKELIS (CA)
Application Number:
PCT/CN2014/092013
Publication Date:
June 04, 2015
Filing Date:
November 24, 2014
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
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