Embedded design on optical coherence tomography control system

Zhiguang Wang; Xiaoping Wang; Genliang Zhong

doi:10.1117/12.783533

14 November 2007 Embedded design on optical coherence tomography control system

Zhiguang Wang, Xiaoping Wang, Genliang Zhong

Proceedings Volume 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 67223M (2007) https://doi.org/10.1117/12.783533
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

This thesis analyzes the principle of single-mode fiber OCT system and its control signal. Then it puts forward a design thought which it integrates various signals into the embedded OCT control system. These signals include galvanometer driving signals for rapid scanning optical delay line (RSOD), high-frequency sawtooth signals for Phase Modulator, control signals for electronic control displacement platform and amplifying and filtering circuit of scanning signals. Then we design and construct an embedded OCT integrated control system which uses ARM9 processor S3C2410A as the core. The system is integrated with many wave generating circuits, driving circuit for electric control displacement platform and amplifying& filtering circuit of feedback signals. The system discards the separated OCT system structure which is made up of many general instruments and has a high cost. The result is satisfactory. Besides, we introduce embedded Linux operating system into the system. As a result, the whole system has such features as low development and production cost, excellent extensibility and strong real time control function. Experimental results show that various control signals generated by our system meet the design demand and can be applied to practical OCT system.

Citation Download Citation

Zhiguang Wang, Xiaoping Wang, and Genliang Zhong "Embedded design on optical coherence tomography control system", Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 67223M (14 November 2007); https://doi.org/10.1117/12.783533

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