Detailed study of synthesized light sources for white-light interferometric systems

Yanong N. Ning; D. N. Wang; Kenneth T. V. Grattan; Andrew W. Palmer; Kenneth Weir

doi:10.1117/12.156435

22 September 1993 Detailed study of synthesized light sources for white-light interferometric systems

Yanong N. Ning, D. N. Wang, Kenneth T. V. Grattan, Andrew W. Palmer, Kenneth Weir

Proceedings Volume 2101, Measurement Technology and Intelligent Instruments; (1993) https://doi.org/10.1117/12.156435
Event: Measurement Technology and Intelligent Instruments, 1993, Wuhan, China

Abstract

Results of a study on the use of synthesized ligth sources are presented. The favarable wavelength combinations for a pair of MLDs was simulated theroetically and verified experiementally. Under the condition of the best wavelength combination the lowest signal-to-noise ratio (SNR) required by the system was found to be 18. 1 dB in theory and 22. 1 db from experiment. The relationships between the wavelengths of two diodes their coherence lengths and the SNR required by the system are shown and discussed.

Citation Download Citation

Yanong N. Ning, D. N. Wang, Kenneth T. V. Grattan, Andrew W. Palmer, and Kenneth Weir "Detailed study of synthesized light sources for white-light interferometric systems", Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); https://doi.org/10.1117/12.156435

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