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Proceedings Paper

1 um semiconductor light source with high power and broadband for optical coherence tomography
Author(s): Lisa Tongning Li; Zhenghua Wu; Jinyan Jin; Weiming Zhu; David Eu
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Paper Abstract

1μm light sources are attractive for Fourier domain optical coherence tomography (FD-OCT) applications for ophthalmology. A semiconductor multi-quantum well structure has been designed and grown (based on AlGaAs/GaA material) to reach the 1μm wavelength window. A compact packaged high power (> 30mW) and wide-bandwidth (>100nm) superluminescent light emit diode (SLD) is achieved with catastrophic optical damage (COD) threshold higher than 100mW. The 1μm SLDs are suitable for high-resolution FDOCT and SD-OCT applications. A high gain and high Psat 1050nm semiconductor optical amplifier (SOA) is also achieved. The 1050nm SOA is a suitable gain medium for swept light sources for ultra high resolution OCT and are ideal for in vivo retinal imaging of small choroid blood vessels below the highly reflective and absorbing retinal pigment epithelium (RPE).

Paper Details

Date Published: 13 July 2009
PDF: 7 pages
Proc. SPIE 7372, Optical Coherence Tomography and Coherence Techniques IV, 73720L (13 July 2009); doi: 10.1117/12.831817
Show Author Affiliations
Lisa Tongning Li, InPhenix, Inc. (United States)
Zhenghua Wu, InPhenix, Inc. (United States)
Jinyan Jin, InPhenix, Inc. (United States)
Weiming Zhu, InPhenix, Inc. (United States)
David Eu, InPhenix, Inc. (United States)

Published in SPIE Proceedings Vol. 7372:
Optical Coherence Tomography and Coherence Techniques IV
Peter E. Andersen; Brett E. Bouma, Editor(s)

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