Impact of a temporal pulse overlap on laser-tissue-interaction of modern ophthalmic laser systems

N. Tinne; G. Knoop; N. Kallweit; E. Lübking; H. Lubatschowski; A. Krüger; T. Ripken

doi:10.1117/12.2003041

15 February 2013 Impact of a temporal pulse overlap on laser-tissue-interaction of modern ophthalmic laser systems

N. Tinne, G. Knoop, N. Kallweit, E. Lübking, H. Lubatschowski, A. Krüger, T. Ripken

Proceedings Volume 8579, Optical Interactions with Tissue and Cells XXIV; 857903 (2013) https://doi.org/10.1117/12.2003041
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

Interaction of subsequent laser pulses becomes important relevant with the use of high-repetition rate fs-laser systems for ophthalmic laser surgery. Therefore, we investigated the interaction of temporally separated laser pulses in water by time-resolved photography. With decreasing temporal separation of pulses the probability of laser-induced optical breakdown (LIOB) is firstly diminished by disturbed focusing into persisting gas bubbles. Finally, LIOB is totally impaired by the expanding or collapsing cavitation of the preceding pulse. Hence, laser-tissue interaction might be accompanied by a raised laser energy transmission. In conclusion, these results are of great interest for the prospective optimization of the ophthalmic surgical process with modern fs-lasers.

Citation Download Citation

N. Tinne, G. Knoop, N. Kallweit, E. Lübking, H. Lubatschowski, A. Krüger, and T. Ripken "Impact of a temporal pulse overlap on laser-tissue-interaction of modern ophthalmic laser systems", Proc. SPIE 8579, Optical Interactions with Tissue and Cells XXIV, 857903 (15 February 2013); https://doi.org/10.1117/12.2003041

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