Title :
Measurement of the ocular pulse using laser interferometry
Author :
Durning, Edward P. ; Campagne, D.P. ; Drake, Allen D.
Author_Institution :
Fiber Opt. Lab., New Hampshire Univ., Durham, NH, USA
Abstract :
By measuring the optical pulse, it is possible to obtain important information on the condition of a patient´s cardiovascular system. A laser interferometer has been developed to gather this information noninvasively and without contacting the eye. A two-frequency laser is used, and the interference pattern yields the ocular pulse signal by standard FM demodulation techniques. The method, the theory that underlies it, and test results of the system are presented
Keywords :
biomedical measurement; eye; laser applications in medicine; light interferometry; 2-frequency laser; FM demodulation techniques; cardiovascular system condition; interference pattern; laser interferometry; ocular pulse measurement; Electronic equipment testing; Fiber lasers; Frequency; Optical fiber polarization; Optical fibers; Optical interferometry; Optical pulses; Optical retarders; Photodetectors; Pulse measurements;
Conference_Titel :
Bioengineering Conference, 1989., Proceedings of the 1989 Fifteenth Annual Northeast
Conference_Location :
Boston, MA
DOI :
10.1109/NEBC.1989.36749
