| 摘要 |
The present invention relates to a device and a method for selective transmission of an optical signal. It is an object of the present invention to provide a light modulator and a method for light modulation capable of selecting very short optical pulses of up to the femtosecond range with a low repetition frequency, wherein the repetition frequency can be variable in a range between several Hz up to the GHz range. To this end, the device has a first optical waveguide (3), a first drive circuit (14), a second optical waveguide (1, 2) and a second drive circuit (15), wherein the spacing between a switching element of the first drive circuit (14) and the first optical waveguide (3) is less than 3 mm, and the distance between a switching element of the second drive circuit (15) and the second optical waveguide (1, 2) is less than 3 mm, and the first optical waveguide (3) has a first absorber section (5), a pulse picker section (4) and a second absorber section (18).
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