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. 2019 Apr 15;10(5):2419–2429. doi: 10.1364/BOE.10.002419

Fig. 1.

Fig. 1

(a) Overall design of endoscopic multimodality OCT and NIR fluorescence system. (b) Multimodality imaging probe. WDM: wavelength division multiplexer. PMT: photomultiplier tube. DCF coupler: double clad fiber coupler. OCT: optical coherence tomography. CW: continuous wavelength. GRIN: gradient index.