Coherent narrow-band light source for miniature endoscopes.

Chen, Zhan-Yu; Gogoi, Ankur; Lee, Shao-Yu; Tsai-Lin, Yuan; Yi, Po-Wei; Lu, Ming-Kuan; Hsieh, Chih-Cheng; Ren, JinChang; Marshall, Stephen; Kao, Fu-Jen

Abstract

In this work, we report the successful implementation of a coherent narrow-band light source for miniature endoscopy applications. An RGB laser module that provides much higher luminosity than traditional incoherent white light sources is used for illumination, taking advantages of the laser light's high spatial coherence for efficient light coupling. Notably, the narrow spectral band of the laser light sources also enables spectrally resolved imaging, to distinguish certain biological tissues or components. A monochrome CMOS camera is employed to synchronize with the time lapsed RGB laser module illumination for color image acquisition and reconstruction, which provides better spatial resolution than a color CMOS camera of comparable pixel number, in addition to spectral resolving.

Citation

CHEN, Z.-Y., GOGOI, A., LEE, S.-Y., TSAI-LIN, Y., YI, P.-W.Y., LU, M.-K., HSIEH, C.-C., REN, J., MARSHALL, S. and KAO, F.-J. 2019. Coherent narrow-band light source for miniature endoscopes. IEEE journal of selected topics in quantum electronics [online], 25(1), article 7100707. Available from: https://doi.org/10.1109/JSTQE.2018.2836959

• Journal Article Type: Article
• Acceptance Date: May 7, 2018
• Online Publication Date: May 15, 2018
• Publication Date: Feb 28, 2019
• Deposit Date: Mar 22, 2022
• Publicly Available Date: Mar 22, 2022
• Journal: IEEE Journal of Selected Topics in Quantum Electronics
• Print ISSN: 1077-260X
• Electronic ISSN: 1558-4542
• Publisher: Institute of Electrical and Electronics Engineers (IEEE)
• Peer Reviewed: Peer Reviewed
• Volume: 25
• Issue: 1
• Article Number: 7100707
• DOI: https://doi.org/10.1109/JSTQE.2018.2836959
• Keywords: Endoscope; Monochrome CMOS; Narrow-band imaging (NBI); RGB laser
• Public URL: https://rgu-repository.worktribe.com/output/1085485