Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer
Reexamination Certificate
2011-01-04
2011-01-04
Toatley, Gregory J (Department: 2877)
Optics: measuring and testing
By light interference
Using fiber or waveguide interferometer
Reexamination Certificate
active
07864330
ABSTRACT:
It is an object of the present invention to provide a method and a device for automatically calibrating a light intensity measurement device. The device (1) includes an optical switch (3) for switching a route of output from an optical intensity modulator (2), an optical attenuator (5) arranged on a first waveguide (4), a second waveguide (6), a light intensity measurement device (7), a control device (8) for receiving light intensity information measured by the light intensity measurement device (7) and controlling the signal to be applied to the optical intensity modulator (2), and a signal source (9) for receiving a control signal of the control device (8) and adjusting the signal to be applied to the optical intensity modulator (2).
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Izutsu Masayuki
Kawanishi Tetsuya
Sakamoto Takahide
Tsuchiya Masahiro
Myers Wolin LLC
National Institute of Information and Communications Technology
Richey Scott M
Toatley Gregory J
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