Experimental Method to Find the Optimum Excitation Waveform to Quench Mechanical Resonances of Fabry–Pérot Tunable Filters Used in Swept Sources

Trifanov, I.; Bradu, A.; Neagu, L.; Guerreiro, P.; Lobo Ribeiro, Antonio B.; Podoleanu, A. Gh.

http://hdl.handle.net/10284/7864

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Authors

Lobo Ribeiro, Antonio B.

Podoleanu, A. Gh.

Abstract(s)

We report experimental evidence of improving the nonlinearity of conventional wavelength swept laser sources based on a fiber Fabry–Pérot tunable filter as a wavelength-selective element. Our solution is based on applying a nonsinusoidal, synthesized waveform to the tunable filter that can be identified experimentally. A significant improvement in the optical coher- ence tomography image quality has been obtained without any software recalibration method.