Cost-effective optical coherence tomography spectrometer based on a tilted fiber Bragg grating
Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
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2014. Papur a gyflwynwyd yn Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV, San Francisco, US (February 20, 2014).
Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
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T1 - Cost-effective optical coherence tomography spectrometer based on a tilted fiber Bragg grating
AU - Remund, S.
AU - Bossen, A.
AU - Chen, X.
AU - Wang, L.
AU - Adebayo, A.
AU - Zhang, L.
AU - Povazay, B.
AU - Meier, C.
PY - 2014/2/20
Y1 - 2014/2/20
N2 - A compact, fiber-based spectrometer for biomedical application utilizing a tilted fiber Bragg grating (TFBG) as integrated dispersive element is demonstrated. Based on a 45° UV-written PS750 TFBG a refractive spectrometer with 2.06 radiant/μm dispersion and a numerical aperture of 0.1 was set up and tested as integrated detector for an optical coherence tomography (OCT) system. Featuring a 23 mm long active region at the fiber the spectrum is projected via a cylindrical lens for vertical beam collimation and focused by an achromatic doublet onto the detector array. Covering 740 nm to 860 nm the spectrometer was optically connected to a broadband white light interferometer and a wide field scan head and electronically to an acquisition and control computer. Tomograms of ophthalmic and dermal samples obtained by the frequency domain OCT-system were obtained achieving 2.84 μm axial and 7.6 μm lateral resolution. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
AB - A compact, fiber-based spectrometer for biomedical application utilizing a tilted fiber Bragg grating (TFBG) as integrated dispersive element is demonstrated. Based on a 45° UV-written PS750 TFBG a refractive spectrometer with 2.06 radiant/μm dispersion and a numerical aperture of 0.1 was set up and tested as integrated detector for an optical coherence tomography (OCT) system. Featuring a 23 mm long active region at the fiber the spectrum is projected via a cylindrical lens for vertical beam collimation and focused by an achromatic doublet onto the detector array. Covering 740 nm to 860 nm the spectrometer was optically connected to a broadband white light interferometer and a wide field scan head and electronically to an acquisition and control computer. Tomograms of ophthalmic and dermal samples obtained by the frequency domain OCT-system were obtained achieving 2.84 μm axial and 7.6 μm lateral resolution. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
U2 - 10.1117/12.2039409
DO - 10.1117/12.2039409
M3 - Paper
T2 - Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV, San Francisco, US (February 20, 2014)
Y2 - 3 January 0001
ER -