| 摘要 |
<p>The device has optical transmitters (41, 42) to produce modulated wavelength channels based on two modulations, respectively. A wavelength selective switch (30) passes the channels from corresponding input branches (51, 53). A sequence switch (43) combines the channels in a common propagation section. A broadband amplifier (45) e.g. Erbium Doped Fiber Amplifier, amplifies the channels in the propagation section, and a coupling unit (47) broadcasts the channels from the propagation section towards the branches of the selective switch.</p> |
