Simple Electrical Modulation Scheme for Laser Feedback Imaging
In this paper, we demonstrate a simple square-wave electrical modulation scheme for imaging with laser feedback interferometry (LFI). Distinct advantages of this scheme include: 1) the straightforward creation of the modulating signal, even for high-current lasers and 2) its natural suitability for...
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| Veröffentlicht in: | IEEE sensors journal 2016-04, Vol.16 (7), p.1937-1942 |
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| container_end_page | 1942 |
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| container_issue | 7 |
| container_start_page | 1937 |
| container_title | IEEE sensors journal |
| container_volume | 16 |
| creator | Bertling, Karl Taimre, Thomas Agnew, Gary Yah Leng Lim Dean, Paul Indjin, Dragan Hofling, Sven Weih, Robert Kamp, Martin von Edlinger, Michael Koeth, Johannes Rakic, Aleksandar D. |
| description | In this paper, we demonstrate a simple square-wave electrical modulation scheme for imaging with laser feedback interferometry (LFI). Distinct advantages of this scheme include: 1) the straightforward creation of the modulating signal, even for high-current lasers and 2) its natural suitability for lock-in detection. We compare this simple scheme against two established imaging modalities for LFI: 1) mechanical modulation using an optical chopper and 2) the swept-frequency feedback interferometry approach. The proposed scheme lends itself to high-frequency modulation, which paves the way for high frame-rate LFI imaging with no motion artefacts using off-the-shelf equipment. |
| doi_str_mv | 10.1109/JSEN.2015.2507184 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1530-437X |
| ispartof | IEEE sensors journal, 2016-04, Vol.16 (7), p.1937-1942 |
| issn | 1530-437X 1558-1748 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Artefacts Choppers Choppers (circuits) Feedback Frequency modulation Imaging Interferometry Lasers Modulation Optical feedback Optical modulation Optical sensors Sensors |
| title | Simple Electrical Modulation Scheme for Laser Feedback Imaging |
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