Abstract
A light modulating device (100) comprises a wave guide device (10) with an input wave guide (11), a plurality of N wave guide arms (12) and an output wave guide (13), wherein the wave guide arms (12) are connected between the input and output wave guides (11, 13) and the output wave guide (13) is adapted for superimposing light portions guided through the wave guide arms (12) to form modulated light, and a phase modulator device (20) being adapted for modulating the optical length of each of the wave guide arms (12) with one of N modulation phase values, which are distributed in the interval of 0 to 2À, wherein the wave guide device (10) comprises at least three wave guide arms (12) and the phase modulator device (20) is adapted for controlling at least one of an amplitude characteristic, a frequency characteristic and a pulse shape of the modulated light. Furthermore, a method of modulat ion of light is described.
| Original language | English |
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| Patent number | EP1990677 |
| IPC | G02F 1/ 21 A N |
| Priority date | 7/05/07 |
| Publication status | Published - 12 Nov 2008 |