Design of a laser diode photoacoustic sensor for tissue measurements

Onni Ahola; Zuomin Zhao; Jussi Tenhunen; Seppo M. Nissila; Risto A. Myllyla

doi:10.1117/12.336930

15 January 1999 Design of a laser diode photoacoustic sensor for tissue measurements

Onni Ahola, Zuomin Zhao, Jussi Tenhunen, Seppo M. Nissila, Risto A. Myllyla

Proceedings Volume 3570, Biomedical Sensors, Fibers, and Optical Delivery Systems; (1999) https://doi.org/10.1117/12.336930
Event: BiOS Europe '98, 1998, Stockholm, Sweden

Abstract

A NIR laser diode photoacoustic sensor is designed and used in tissue measurement. Laser diode is easy to carry out portable sensor. Because of low absorption of tissue in NIR region and the limited output power of the diode, the gain and SNR of the receiver should be high for measuring very low level signals. Developing higher pulse energy of laser diode and more sensitive transducer are the key for the diode sensor in application of biomedical measurement.

Citation Download Citation

Onni Ahola, Zuomin Zhao, Jussi Tenhunen, Seppo M. Nissila, and Risto A. Myllyla "Design of a laser diode photoacoustic sensor for tissue measurements", Proc. SPIE 3570, Biomedical Sensors, Fibers, and Optical Delivery Systems, (15 January 1999); https://doi.org/10.1117/12.336930

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