Passive Ti:LiNbO3 Channel Waveguide TE-TM Mode Splitter

摘要

A passive compact TE-TM mode splitter has been demonstrated using Ti:LiNbO3, channel waveguides. Its operation is based on the interference between the two guided modes of a double-mode waveguide segment connecting single-mode input and output guides. A device made using one set of design parameters has splitting ratios of 12 dB for both polarizations. Another device made using different parameters has a splitting ratio of 17dB for TM modes. The devices are capable of low-loss, broadband operation.