… and shallowly etched waveguides was implemented in the … TE 1 modes, achieving ultralow
loss and imbalance. Here, the … this is the lowest loss silicon waveguide crossing for both TE …

… an ultra-low loss waveguide crossing using a combination of strip and rib waveguides in the
… lowest loss dual-mode waveguide crossing for MDM systems. A combination of strip and rib …

… as that in the relatively low refractive index waveguide crossing. SWG is intrinsically birefringent
… an imbalanced performance of TE and TM polarizations in the previous proposed silicon …

… In order to design a low-loss waveguide crossing array, we first investigate the loss
mechanism in the simple 1 × 1 symmetric MMI structure shown in Fig. 1(d). Similar to a previously …

… , ultralow loss silicon waveguide crossings operating at 1550 nm … Both crossings show
crosstalk lower than − 37 dB. The … previous report of a low-loss waveguide crossing at 1550 nm …

… 4 that the ILs of all modes of the crossing structure are lower than 1.2 dB, and the CTs are
less than −20 dB in the broadband from 1530 nm to 1580 nm. The ILs of the input 1-8 ports are …

… waveguide crossing with different wavelengths in the same direction. The waveguide crossing
… × 3.6 μm, which is a very compact waveguide crossing. In the 150 nm working bandwidth …

… We demonstrated an ultralow-loss and low-crosstalk waveguide crossing operating in the
O-band based on the Gaussian beam synthesis. Elliptical parabolic inverted tapers were …

… 9(a–c)) under incident TE mode at I1, I2, and I3 were a little lower than when 2 × 2 waveguide
crossings were used, and the electromagnetic power distributions at λ = 1 . 55 μ m under …

… Recently, we have proposed to associate a low birefringent, … Waveguides are diffused from
an electron-beam evaporated, … [X,Zj and is crossed by a Ti-waveguide. The TM polarized …