High common mode rejection ratio InP 90° optical hybrid in ultra-broadband at 60 nm with deep-rigded waveguide based on × 4 MMI coupler
Measured CMRRs for In-phase channels and quadrature channels of (a) input port 1 and (b) input port 3.
High common mode rejection ratio InP 90° optical hybrid in ultra-broadband at 60 nm with deep-rigded waveguide based on × 4 MMI coupler |
Measured CMRRs for In-phase channels and quadrature channels of (a) input port 1 and (b) input port 3. |
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