Low Power Consumption VOA Array With Air Trenches and Curved Waveguide
The paper introduces a 24-channel air-trench isolated Silica-based VOA array.The air trenches thermally insulate the VOAs with etched-free waveguide technologies.Reactive ion etching Furniture and wet etching were used at different channel locations to suppress thermal crosstalk and reduce power consumption.When thermal crosstalk is declined by 3 d