| 摘要 |
<p>An optical device (1) for multiplexing/demultiplexing optical wavelength signals comprises arrayed waveguide grating devices (2, 5). To one thereof an optical signal, e.g. one of the optical wavelength signals or an optical signal from a reference source, is input so that its corresponding output signal can be used as a temperature control signal for a temperature control means (7) of the waveguide device. Thus optimization for one optical wavelength signal automatically leads to optimization of all other optical wavelength signals.</p> |
