| 摘要 |
<p>An optical coupler with optical amplification for cross and bar coupling of optical signals has an incoming light waveguide (23) an outgoing light waveguide (24) for bar coupling of the light from the incoming light waveguide and an outgoing light waveguide (22) for cross coupling of light from the incoming light waveguide (23). The light waveguides (22, 23, 24) are connected to waveguide sections (212, 234) arranged on a substrate (5) under a pair of electrodes (3, 4) which are supplied with current. The amplification for the different coupling states may be obtained by the current supply.</p> |
