| US 7,519,250 B2 | ||
| Optical switches | ||
| Jeffery J. Maki, Fremont, Calif. (US) | ||
| Assigned to Dynamic Method Enterprises Limited, Hong Kong (Hong Kong Special Administrative Region of the People's Republic of China, The) | ||
| Filed on Jun. 11, 2008, as Appl. No. 12/137,495. | ||
| Application 12/137495 is a division of application No. 11/215068, filed on Aug. 29, 2005, granted, now 7,397,989. | ||
| Claims priority of provisional application 60/611927, filed on Sep. 21, 2004. | ||
| Prior Publication US 2008/0292240 A1, Nov. 27, 2008 | ||
| Int. Cl. G02B 6/12 (2006.01); G02B 6/26 (2006.01) | ||
| U.S. Cl. 385—40 [385/18; 385/16] | 15 Claims |
| 1. An optical switch, comprising:
a first waveguide;
a second waveguide across with the first waveguide in an angle to form an intersection; and
a pair of electrodes placed within a proximity of the intersection to switch a light traveling from the first waveguide to
the second waveguide, wherein at least one electrode has at least one protrogen edge that reflects light; wherein the intersection
includes a geometry having a ridge width (W), a ridge height (H), and a slab height (h) satisfying the following equation
 wherein α is ranging from approximately 0.0 to 0.3.
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