… for multimode waveguides are requisite in on-chip MDM … an ultralow loss silicon multimode
waveguide crossing using a combination of fully etched and shallowly etched waveguides in …

… , broadband, ultralow loss silicon waveguide crossings operating at … loss of − 0.028 ±
0.009 dB for the 1550 nm device and − 0.017 ± 0.005 dB for the 1310 nm device. Both crossings …

… Ultra-compact waveguide crossing (UC-WC) is a basic … a large loss of UC-WC (decibel
level) becomes a barrier to scaling and practicality. Here, we propose a series of ultra-low loss UC…

… The corresponding insertion loss are less than 0.067 dB, 0.075 dB, 0.081 and 0.133 dB, …
star-crossings with arbitrary angles, which can reduce the difficulty of the waveguide routing and …

… considerations for ultra-low loss waveguides. In doing so, we focused on choosing the
correct waveguide index contrast and core geometry for achieving good waveguide amplitude …

… of attractive features, with individual crossings down to 0.18 dB loss and 41 dB cross talk [14].
In this Letter, we describe ultra-low-loss waveguide crossing arrays based on a periodic …

… However, ultralow-loss O-band silicon waveguide crossings … ultralow-loss waveguide
crossings functioning at the O-band. … an ultralow-loss planar silicon waveguide crossing operating …

… it is crucial that the loss of the waveguide crossings are low to … Other applications of the
waveguide crossing in integrated … with out-of-plane waveguide crossings on many layers [9] that …

… low loss and low crosstalk silicon nitride waveguide crossings based … losses below 0.16
dB, which is a significant improvement compared to a standard single mode waveguide crossing …

… used to reduce the insertions loss. We design and fabricate a 101 × 101 waveguide crossing
array with a pitch of 3.08 μm. Insertion loss of ∼ 0.02 dB per crossing and crosstalk < − 40 …