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An on-chip silicon TE-pass polarizer is proposed and demonstrated. The proposed polarizer is realized by asymmetrical directional couplers assisted with sharp bending and tapered waveguides. The TM ₀ mode is converted into TM ₁ mode through the asymmetrical directional coupler and then filtered out by the bending and taper, while TE ₀ mode goes through with negligible coupling due to the phase mismatch. The measured extinction ratio at central wavelength is 29.8 dB, while the -15 dB bandwidth is >80 nm.