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James G. Fujimoto. Lee, ByungKun Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science 2013-03-01T15:05:56Z 2013-03-01T15:05:56Z 2012 2012 http://hdl.handle.net/1721.1/77446 826515151 Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012. Cataloged from PDF version of thesis. Includes bibliographical references (p. 47-48). Optical coherence tomography (OCT) has risen as a clinical standard of diagnosis and management of ocular diseases since its development in 1991 by the MIT group and the collaborators. Since current cutting-edge OCT technology based on frequency-swept lasers has achieved scanning rate over 1,000,000 axial scans per second, the imaging speed is limited by the detection and analog-to-digital conversion stages. In order to match the rapid advancement of OCT imaging speed, a variety of balanced photoreceivers have been developed. A low-cost setup for systematic performance evaluation of the receivers in radio frequency (RF) range up to 2GHz is presented. The test procedure, including measurements of gain, bandwidth, and harmonic distortion, is automated by National Instruments Virtual Instrument Software Architecture (NI-VISA) programming using USB and GPIB interface. Since the test equipment has parasitic response, quasi-calibration using a fast biased detector is necessary. Detailed description of the equipment and the test protocol is included as well as the performance comparison of the available receiver products and prototypes. by ByungKun Lee. M.Eng. 48 p. eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Electrical Engineering and Computer Science. RF test methods for balanced receivers for swept source optical coherence tomography Radio frequency test methods for balanced receivers for swept source optical coherence tomography Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="6d8270a0-3b4e-42f5-ae3a-149f4472d4df"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>RF test methods for balanced receivers for swept source optical coherence tomography</Title> <Subtitle>Radio frequency test methods for balanced receivers for swept source optical coherence tomography</Subtitle> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2012</PublicationDate> <Authors> <Author> <DisplayName>Lee, ByungKun</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Electrical Engineering and Computer Science.</Keyword> <Abstract>Optical coherence tomography (OCT) has risen as a clinical standard of diagnosis and management of ocular diseases since its development in 1991 by the MIT group and the collaborators. Since current cutting-edge OCT technology based on frequency-swept lasers has achieved scanning rate over 1,000,000 axial scans per second, the imaging speed is limited by the detection and analog-to-digital conversion stages. In order to match the rapid advancement of OCT imaging speed, a variety of balanced photoreceivers have been developed. A low-cost setup for systematic performance evaluation of the receivers in radio frequency (RF) range up to 2GHz is presented. The test procedure, including measurements of gain, bandwidth, and harmonic distortion, is automated by National Instruments Virtual Instrument Software Architecture (NI-VISA) programming using USB and GPIB interface. Since the test equipment has parasitic response, quasi-calibration using a fast biased detector is necessary. Detailed description of the equipment and the test protocol is included as well as the performance comparison of the available receiver products and prototypes.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>