| 摘要 |
<p>An optical attenuator (14) is disclosed. The attenuator includes a light transmitting medium (12) having a ridge (26) defining at least a portion of a light signal carrying region. The attenuator also includes at least one first index changing element (36A) positioned over the ridge. The at least one first index changing element is configured to change the index of refraction of the light transmitting medium.</p> |
