| Share | Phrase |
|---|
| 48.52% | optical [domain related] waveguide |
| 10.54% | cylindrical [shape] waveguide |
| 9.04% | circular [shape] waveguide |
| 7.68% | metallic waveguide |
| 7.12% | waveguide mode |
| 5.31% | waveguide [does] enter |
| 4.13% | least [degree] waveguide |
| 3.45% | waveguide [connection] apply |
| 2.15% | connect waveguide [perform operation] |
| 2.03% | waveguide [does] have |