| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| delay line interferometer | 1.27 | 0.3 | 3657 | 9 | 25 |
| delay | 1.15 | 0.7 | 4942 | 31 | 5 |
| line | 1.32 | 0.3 | 1522 | 93 | 4 |
| interferometer | 0.91 | 0.9 | 2118 | 6 | 14 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| delay line interferometer | 1.34 | 0.5 | 8273 | 41 |
| delay line interferometer free spectral range | 0.75 | 0.1 | 7402 | 96 |
