Low-crosstalk passive polarization splitters using Ti:LiNbO3 waveguide crossings
- 4 September 1989
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 55 (10) , 927-929
- https://doi.org/10.1063/1.102452
Abstract
In this letter the first demonstration of low‐crosstalk passive polarization splitters based on Ti: LiNbO3 single‐mode waveguide crossings is reported. Polarization crosstalk of less than −20 dB for both polarizations and total insertion loss figures of −2.5 dB (TE) and −3.0 dB (TM) at λ=1.3 μm have been achieved by optimizing the design and the fabrication of the intersection area. The devices operated nearly wavelength independent (±0.3 dB) over a range of 100 nm.Keywords
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