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

Autor:	Sunduck Kim, Min-Seok Yoon, Young-Geun Han, Oh-Jang Kwon
Rok vydání:	2012
Předmět:	Optical fiber Materials science Pixel medicine.diagnostic_test business.industry General Physics and Astronomy law.invention Optics Optical coherence tomography law Linearization Broadband medicine Tomography business Diffraction grating Photonic-crystal fiber
Zdroj:	Journal of the Korean Physical Society. 61:1485-1489
ISSN:	1976-8524 0374-4884
DOI:	10.3938/jkps.61.1485
Popis:	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 µm. 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::19cf479c610c69d77b6ee18e90b6d8f2 https://doi.org/10.3938/jkps.61.1485 Zobrazit plný text záznamu Full text from SpringerLink