All-fiber spectral-domain optical coherence tomography with high resolution by using a PCF-based broadband coupler and a k-domain linearization method

作者：Kwon Oh Jang^*; Kim Sunduck; Yoon Min Seok; Han Young Geun

来源：Journal of the Korean Physical Society, 2012, 61(9): 1485-1489.

DOI：10.3938/jkps.61.1485

• Fiber-optics
• Tomography
• Biological and medical applications

We demonstrate spectral-domain optical coherence tomography (SD-OCT) with high axial resolution and high image acquisition speed, which is realized by using a broadband coupler based on a photonic crystal fiber (PCF). The PCF-based coupler with broad bandwidth was fabricated by using a fused biconical tapered (FBT) method, and the axial resolution of the SD-OCT was improved to be 2 A mu m. The image acquisition speed of the SD-OCT was estimated to be 500 Hz. A k-domain linearization method was exploited to compensate for the mismatched spectral information between the wave-number and the pixel position at the CCD, which was induced by the nonlinearity of the diffraction grating plate.

• 出版日期2012-11