Invention Application
- Patent Title: Optical Scanning
- Patent Title (中): 光学扫描
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Application No.: US14729529Application Date: 2015-06-03
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Publication No.: US20150357788A1Publication Date: 2015-12-10
- Inventor: Thomas A. Puppe , Nico Vieweg , Armin Zach , Alexander Sell
- Applicant: TOPTICA Photonics AG
- Applicant Address: DE Grafelfing
- Assignee: TOPTICA Photonics AG
- Current Assignee: TOPTICA Photonics AG
- Current Assignee Address: DE Grafelfing
- Priority: DE102014007998.8 20140605; DE102015108602.6 20150601
- Main IPC: H01S3/11
- IPC: H01S3/11 ; H01S3/067 ; H01S3/23

Abstract:
The invention relates to 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, and a second light source (52) generating a second sequence (II) of light pulses at a second repetition rate. It is the object of the present invention to provide an improved device for generating temporally distant light pulses. This object is inventively achieved by providing for at least one actuator element which influences the first and/or the second repetition rate, and a control element (61) which charges the actuator element with a periodical modulation signal (62) for periodical variation of the first and/or second repetition rate. A control circuit is provided for, comprising 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), a control element (64), at the input of which the control deviation signal (63) is pending, and a superposition element (66) which forms an actuator signal (67) from the modulation signal (62) and the output signal (65) of the control element (64), and which charges the actuator element with the actuator signal (67). Moreover, the invention relates to a method for generating temporally distant light pulses.
Public/Granted literature
- US09685754B2 Optical scanning Public/Granted day:2017-06-20
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