Patent ID: 8687980
Filing Date: 2014-04-01
Classification: H04B,H04J

Abstract:
1. A feedback light tuning device used in an optical communication device having a superfluorescent fiber source (SFS) and a light source output terminal, the device comprising: a wide band splitter, which is connected with the SFS in the optical communication device via an optical fiber for receiving a first-direction emission emitted by the SFS, splitting the first-direction emission into a first beam and a second beam, with the first beam being output to the light source output terminal and the second beam being fed back; a mean wavelength detection module, which is connected to the wide band splitter via an optical fiber for receiving the second beam fed back from the wide band splitter to compute a mean wavelength drift; and a feedback light control module, which is electrically connected to the mean wavelength detection module and connected via an optical fiber with the SFS in the optical communication device for receiving a second-direction emission emitted by the SFS in the direction opposite to the first-direction emission and producing feedback light according to the mean wavelength drift transmitted from the mean wavelength detection module and emitting the feedback light to the SFS for causing gain competition, thereby correcting and tuning the mean wavelength of the first-direction emission emitted by the SFS.