Influence of Phase Drift on Optical Coherence Tomography Using a CCD Camera-Based Heterodyne Detection Technique

Autor:	Kin Pui Chan, Naohiro Tanno, Masahiro Ajub
Rok vydání:	2002
Předmět:	Physics Heterodyne medicine.diagnostic_test business.industry Phase (waves) Signal Atomic and Molecular Physics and Optics Optics Optical coherence tomography Sensor array medicine Charge-coupled device Heterodyne detection Optical tomography business
Zdroj:	Optical Review. 9:170-175
ISSN:	1349-9432 1340-6000
Popis:	The performance of a two-dimensional heterodyne detection technique in optical coherence tomography (OCT) was studied. This technique, which is based on the frequency synchronous detection method, enables the use of an imager such as a charge coupled device (CCD) camera as a heterodyne sensor array, so that horizontal cross-sectional image can be acquired in real time without lateral scanning. OCT measurements of scattering media including a biological object were demonstrated. To evaluate the influence of phase fluctuations on the present technique, we measured and analyzed the statistical relative-standard-deviation of heterodyne signal intensity as a function of the random phase shifts between two consecutive CCD frames. Practical limitations in the signal stability and possible solutions are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::787c21a2068c165f5b2de84b931d46cc https://doi.org/10.1007/s10043-002-0170-5 Zobrazit plný text záznamu Full text from SpringerLink