Patent ID: 9685754
Date: 2017-06-20
CPC Classifications: G01J,H01S

Claim:
1. A device for generating temporally distant light pulses, said device comprising a first light source ( 51 ) generating a first sequence (I) of light pulses at a first repetition rate, a second light source ( 52 ) generating a second sequence (II) of light pulses at a second repetition rate, at least one actuator element influencing the first and/or the second repetition rate, and a control element ( 61 ) charging the actuator element with a periodical modulation signal ( 62 ) for periodical variation of the first and/or the second repetition rate, characterized by a phase detector ( 57 ) which derives a control signal ( 58 ) from the first light pulse sequence (I) and the second light pulse sequence (II), a corrective element ( 59 , 60 ) which derives a control deviation signal ( 63 ) from the control signal ( 58 ) and the modulation signal ( 62 ), and a control element ( 64 ) at the input of which the control deviation signal ( 63 ) is pending, with the actuator element being charged with an actuator signal ( 67 ) formed from the output signal ( 65 ) of the control element ( 64 ).