| 摘要 |
An electro-optic device comprising a ridge waveguide (10) surrounded on either side by a slab region (12,14) containing a doped region (32), thereby to form a conductive path across the waveguide, each doped region being bounded on at least two sides by confining layers of oxide (16,22), the confining layers being of a material different to the material of the slab regions. <IMAGE> |
