| 摘要 |
<p>An integrated optical device comprising an optical planar waveguide amplifier monolithically integrated on a common substrate with at least one additional planar waveguide selected from a group comprising : a planar waveguide signal-processing circuit arranged to process an optical communications signal; and a planar waveguide pump-signal coupling circuit arranged to couple or decouple a pump wavelength to or from the amplifier. The amplifier has a core comprising an optically-transmissive metal oxide material doped with an optical amplifying medium. The amplifier can be composed of aluminium oxide doped with erbium and/or ytterbium. The signal processing circuit may comprise an AWG, a channel gain equalizer, an optical switch, a modulator, or an OADM. The pump-signal coupling circuit may comprise an asymmetric Mach-Zehnder interferometer.</p> |
