1 um semiconductor light source with high power and broadband for optical coherence tomography

Lisa Tongning Li; Zhenghua Wu; Jinyan Jin; Weiming Zhu; David Eu

doi:10.1117/12.831817

13 July 2009 1 μm semiconductor light source with high power and broadband for optical coherence tomography

Lisa Tongning Li, Zhenghua Wu, Jinyan Jin, Weiming Zhu, David Eu

Proceedings Volume 7372, Optical Coherence Tomography and Coherence Techniques IV; 73720L (2009) https://doi.org/10.1117/12.831817
Event: European Conferences on Biomedical Optics, 2009, Munich, Germany

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).

Citation Download Citation

Lisa Tongning Li, Zhenghua Wu, Jinyan Jin, Weiming Zhu, and David Eu "1 μm semiconductor light source with high power and broadband for optical coherence tomography", Proc. SPIE 7372, Optical Coherence Tomography and Coherence Techniques IV, 73720L (13 July 2009); https://doi.org/10.1117/12.831817

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