High Speed Transcutaneous Optical
نویسندگان
چکیده
....................................................................................................................... 7 CHAPTER I: EXTENDED INTRODUCTION ................................................................. 9 A. Motivation for a High Speed Transcutaneous Telemetry Link .............................. 9 B. Link Design Specifications ................................................................................... 11 1) Functional Specifications.................................................................................. 11 2) Technical Specifications ................................................................................... 12 C. Fundamentals of Data Transfer............................................................................. 16 D. Choosing a Method for Data Transmission .......................................................... 17 E. Fundamentals of Optical Communication ............................................................ 21 1) Optical Transmitters.......................................................................................... 22 2) Optical Detectors .............................................................................................. 23 3) Optics and Filtering........................................................................................... 24 4) Transmission Medium and Transmitter-Receiver Alignment .......................... 25 5) Noise in Optical Communication Systems ....................................................... 26 6) Multipath Distortion: Intersymbol Interference (ISI) ....................................... 28 F. Optical Properties of Skin..................................................................................... 28 1) The Layers of Human Skin ............................................................................... 29 2) The UV, Visible and IR spectrum..................................................................... 29 3) Chromophores................................................................................................... 31 4) Light Propagation in Human Skin .................................................................... 31 5) Optical Clearing ................................................................................................ 36 G. Optical Safety Hazards ......................................................................................... 36 1) Irradiative Heating ............................................................................................ 37 2) Conductive Heating .......................................................................................... 38 H. Conclusions........................................................................................................... 40 CHAPTER II: DESIGNING THE OPTICAL INTERFACE OF A TRANSCUTANEOUS OPTICAL TELEMETRY LINK ...................................................................................... 45 A. Abstract ................................................................................................................. 45 B. Introduction........................................................................................................... 46 C. Experimental Methods .......................................................................................... 48 1) Tissue Preparation............................................................................................. 48 2) Measurement Technique................................................................................... 48
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