| 摘要 |
Methods and apparatus for depolarizing light are disclosed. A disclosed apparatus includes a waveguide, a first microresonator and a second microresonator. The first microresonator has a first birefringence and is evanescently coupled to the waveguide. The second microresonator has a second birefringence different than the first birefringence and is also evanescently coupled to the waveguide. A disclosed method includes evanescently coupling a first portion of input light into a first microresonator, rotating the polarization of the first portion to create a first recirculated portion, and evanescently coupling the first recirculated portion into a waveguide. The disclosed method further includes evanescently coupling a second portion of input light into a second microresonator, rotating the polarization of the second portion to create a second recirculated portion, and evanescently coupling the second recirculated portion into the waveguide.
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