Sharma, Ameeth2017-06-072017-06-072016-07Sharma, A. 2016. A high speed OCT system developed at the CSIR National Laser Centre. 61st Annual Conference of the SA Institute of Physics, University of Cape Townhttp://events.saip.org.za/contributionDisplay.py?contribId=348&sessionId=16&confId=86http://events.saip.org.za/conferenceDisplay.py?confId=91http://hdl.handle.net/10204/912261st Annual Conference of the SA Institute of Physics, University of Cape TownLight based techniques continue to gain momentum in different spheres of diagnostic and therapeutic applications as a result of their non-invasive, noncontact properties. One such technique is Optical Coherence tomography (OCT). Since it was first reported by Huang in 1991[1], OCT has made significant strides in different fields from dermatology and ophthalmology to polymer characterisation and bio-metrics[2-4]. In South Africa, the technique is still emerging although it is being used for eye examinations by ophthalmologists. The type of OCT system employed can be a simple, cost effective solution or a complex, highly specific and fast system depending on the application. As part of a larger project, the CSIR National Laser Centre has designed and built a high speed OCT system that can image a large surface area (25 by 25 mm) to a depth of 11 mm (sample dependant). Resultant 3-D images (512 x 512 x 2048 pixels) are acquired in less than 3 seconds. The performance of the system compares adequately with many commercially available systems which usually image smaller areas [5-6]. The heart of the system is a 200 kHz swept laser source and two axis galvonometer based scanner. Signal acquisition is made possible through a high speed analogue-to-digital converter capable of speeds greater than 1GS/s. This paper will give an overview of the system and elaborate on the design of the data acquisition system and the initial results that have been obtained.enLight based techniquesOptical Coherence tomographyDermatologyOphthalmologyOphthalmologistsCSIR National Laser CentreConference PresentationSharma, A. (2016). A high speed OCT system developed at the CSIR National Laser Centre. South African Institute of Physics (SAIP). http://hdl.handle.net/10204/9122Sharma, Ameeth. "A high speed OCT system developed at the CSIR National Laser Centre." (2016): http://hdl.handle.net/10204/9122Sharma A, A high speed OCT system developed at the CSIR National Laser Centre; South African Institute of Physics (SAIP); 2016. http://hdl.handle.net/10204/9122 .TY - Conference Presentation AU - Sharma, Ameeth AB - Light based techniques continue to gain momentum in different spheres of diagnostic and therapeutic applications as a result of their non-invasive, noncontact properties. One such technique is Optical Coherence tomography (OCT). Since it was first reported by Huang in 1991[1], OCT has made significant strides in different fields from dermatology and ophthalmology to polymer characterisation and bio-metrics[2-4]. In South Africa, the technique is still emerging although it is being used for eye examinations by ophthalmologists. The type of OCT system employed can be a simple, cost effective solution or a complex, highly specific and fast system depending on the application. As part of a larger project, the CSIR National Laser Centre has designed and built a high speed OCT system that can image a large surface area (25 by 25 mm) to a depth of 11 mm (sample dependant). Resultant 3-D images (512 x 512 x 2048 pixels) are acquired in less than 3 seconds. The performance of the system compares adequately with many commercially available systems which usually image smaller areas [5-6]. The heart of the system is a 200 kHz swept laser source and two axis galvonometer based scanner. Signal acquisition is made possible through a high speed analogue-to-digital converter capable of speeds greater than 1GS/s. This paper will give an overview of the system and elaborate on the design of the data acquisition system and the initial results that have been obtained. DA - 2016-07 DB - ResearchSpace DP - CSIR KW - Light based techniques KW - Optical Coherence tomography KW - Dermatology KW - Ophthalmology KW - Ophthalmologists KW - CSIR National Laser Centre LK - https://researchspace.csir.co.za PY - 2016 T1 - A high speed OCT system developed at the CSIR National Laser Centre TI - A high speed OCT system developed at the CSIR National Laser Centre UR - http://hdl.handle.net/10204/9122 ER -