Light source device, optical device, control light generation method, and monitoring light generation method
AssigneeNEC Corporation
InventorTaketo Onuma
Life of this patent
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Abstract
Since it is difficult to constantly monitor a large number of unused fiber optic transmission lines in an optical submarine cable system, a light source device according to the present invention includes: a light generation unit for generating amplified spontaneous emission light; a light control unit for controlling the band and power of the amplified spontaneous emission light and generating waveform shaping spontaneous emission light; and an optical branching unit for branching the waveform shaping spontaneous emission light into a plurality of branched light beams.
Claims10
A light source device comprising:
- a light generation circuit configured to generate an amplified spontaneous emission light;
- a light control circuit configured to control a band and power of the amplified spontaneous emission light and generate a waveform-shaped spontaneous emission light;
- and
- a light circuit configured to split the waveform-shaped spontaneous emission light into a plurality of split lights;
- and
- a first connection circuit configured to introduce each of the plurality of split lights into a plurality of interface devices provided to each of a plurality of light transmission paths,
- wherein the light control circuit controls a band and power of the amplified spontaneous emission light, according to a number of the plurality of interface devices.
A light source device comprising:
- a light generation circuit configured to generate an amplified spontaneous emission light;
- a light control circuit configured to control a band and power of the amplified spontaneous emission light and generate a waveform-shaped spontaneous emission light;
- a light splitting circuit configured to split the waveform-shaped spontaneous emission light into a plurality of split lights;
- a first connection circuit configured to introduce each of the plurality of split lights into a plurality of interface devices provided to each of a plurality of light transmission paths;
- and
- a second connection circuit configured to introduce the waveform-shaped spontaneous emission light into an operation interface device included in the plurality of interface devices,
- wherein the operation interface device is associated with an operation light transmission path through which a main signal light is propagated, among the plurality of light transmission paths.
A control light generation method comprising:
- generating an amplified spontaneous emission light;
- controlling a band and power of the amplified spontaneous emission light and generating a waveform-shaped spontaneous emission light;
- splitting the waveform-shaped spontaneous emission light into a plurality of split lights;
- and
- introducing each of the plurality of split lights into a plurality of interface devices provided to each of a plurality of light transmission paths,
- wherein the generating the waveform-shaped spontaneous emission light includes controlling a band and power of the amplified spontaneous emission light, according to a number of the plurality of interface devices.
Dependencies are inferred from the claim text.