Extract to table

Lumos's construction imposes specific structural requirements—namely, that the coupling must occur "through a gradual, continuous taper"—in addition to the functional requirement of preventing higher-order mode excitation

The claim language is straightforward: the waveguide must be "tapered" (i

its width changes along its length, narrowing toward a tip) and the tip must have a width of less than 200 nanometers

The claim language requires only that the waveguide be "tapered" and have a tip width less than 200 nm; it does not specify that the width must decrease monotonically