A 1×8 silicon optical phased array at 2 μm wavelength band is experimentally demonstrated. The optical phased array can achieve a steering angle of ±31° in the Ψ axis through the thermo-optic effect.
We demonstrated the design of a 16-channel silicon nitride arrayed waveguide grating at 2μm wavelength band. The AWG has a channel spacing of 200GHz. The insertion loss is ~1.57dB, and the crosstalk is -23.06dB.
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