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- W4281556062 abstract "A new method of laser energy delivery in turbid media has been created. It can greatly reduce light power transmission loss by using multibeam interference. The feasibility of the method has been proved by theoretical calculation. The apparatuses have also been designed and show excellent performance. The method uses a mode-locked fiber laser to emit a short laser pulse into a mirrored negative dispersion device. The light pulse spectral components form multiple beams with different frequencies. As dispersion occurs, the width of the laser pulse is broadened in the device, and so the combined intensity of the multiple beams is greatly decreased. When these beams enter the turbid medium, the medium absorption and scattering will also be greatly reduced because of their greatly decreased combined intensity. Meanwhile, the positive dispersion of the turbid medium starts to compress the broadened laser pulse. If the mirrored negative dispersion device is designed to produce ideal mirrored dispersion compensations, the broadened laser pulse can be compressed well in the turbid medium and create a combined intensity maximum, which becomes an internal light layer with extremely high intensity. In this way, the laser energy delivery distance can be largely increased. For example, the calculations show that wireless optical communication distances can be increased to more than 1000m in clean ocean water, and no incision laser surgery operating depths can be increased to more than 5cm with the possibility of even up to 10cm in the human body with a high precision of ~1μm and no X-ray radiation injury." @default.
- W4281556062 created "2022-05-27" @default.
- W4281556062 creator A5060953135 @default.
- W4281556062 date "2022-05-25" @default.
- W4281556062 modified "2023-09-23" @default.
- W4281556062 title "Laser energy delivery method and apparatus using multiple beam interference" @default.
- W4281556062 doi "https://doi.org/10.1117/12.2623912" @default.
- W4281556062 hasPublicationYear "2022" @default.
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