Title :
Adaptive optical coherence tomography using photorefractive quantum wells
Author :
Peng, L. ; Mustata, M. ; Jarvis, J.D. ; Yu, P. ; Nolte, D.D.
Author_Institution :
Dept. of Phys., Purdue Univ., West Lafayette, IN, USA
Abstract :
Summary form only given. In this paper, we report the first demonstration of adaptive OCT using a photorefractive quantum well (PRQW) as an adaptive beam combiner. The coherent light is detected as an adaptive homodyne signal. Depth information is retrieved by using a short-coherence light source and scanning a delay line. The system operates at quadrature for maximum homodyne detection (determined solely by choosing center wavelength), requiring no active feedback. This scheme is robust and insensitive to mechanical vibrations and laser speckle.
Keywords :
adaptive optics; homodyne detection; multiwave mixing; optical delay lines; optical tomography; quantum well devices; adaptive beam combiner; adaptive homodyne signal; adaptive optical coherence tomography; center wavelength; coherent light detection; delay line scanning; depth information retrieval; laser speckle insensitivity; maximum homodyne detection; mechanical vibration insensitivity; photorefractive quantum wells; short-coherence light source; turbid media; two-wave mixing; Adaptive optics; Adaptive signal detection; Delay lines; Information retrieval; Laser feedback; Light sources; Optical feedback; Photorefractive effect; Robustness; Tomography;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1033488
