Silica-based 71-channel arrayed waveguide grating

Abstract

Silica-based 71-channle AWGs with 0.4 nm (50 GHz) channel spacing at 1. 5445 μ have been designed and fabricated by using silica-based waveguide. Theoretical simulation and experimental results are given and compared. The test results show that the fiber-to-fiber insertion loss ranges from 3. 5 dB to 7.1 dB for central and peripheral output ports, respectively, the total crosstalk level is better than — 32 dB, 3 dB bandwidth is 25 GHz and polarization dependence loss (PDL) within 3 dB bandwidth is less than 0.5 dB, which agrees well with the simulation results.

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