Optical control device and optical branching device
AssigneeNEC Corporation
InventorRyota ABE
Life of this patent
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Abstract
In order to provide a feature with which it is possible to suppress the occurrence of an optical surge independently of the type of optical switch, there is provided an optical control device for processing inputted first light and outputting second light, wherein the optical control device is provided with: a switching unit for switching and outputting first light that has undergone a selected process; and a variable output unit connected in series to the switching unit, the variable output unit operating so as to reduce the optical power of the second light before switching by the switching unit is executed and to gradually increase the optical power of the second light after the switching is executed.
Claims16
An optical control device configured to process input first light and output second light, the optical control device comprising:
- a switch configured to switch and output the first light subjected to selected processing;
- and
- variable output circuit configured to reduce optical power of the second light before the switching by the switch is executed and gradually increase optical power of the second light after the switching is executed, the variable output circuit being connected in series to the switch.
An optical control method for processing first light and outputting second light, the optical control method comprising:
- switching and outputting the first light subjected to selected processing;
- reducing optical power of the second light before the switching is executed;
- and
- gradually increasing optical power of the second light after the switching is executed.
A tangible and non-transitory recording medium recording an optical control program that causes a computer of an optical control device configured to process first light and output second light, to execute:
- a procedure of switching and outputting the first light subjected to selected processing;
- a procedure of reducing optical power of the second light before the switching is executed;
- and
- a procedure of gradually increasing optical power of the second light after the switching is executed.
Dependencies are inferred from the claim text.