Fcmh2 fc

The FO setup illustrated in Figure 4 consists of the following components: visible (VIS) broadband source (HL-2000-FHSA-LL, 360–2400 nm, Ocean Optics, Oslo, Norway), 50:50 coupler MM (50/50, FCMH2-FC, 400–1600 nm, Thorlabs, Göteborg, Sweden), VIS spectrometer (QE65Pro, Ocean Optics, Oslo, Norway), loose OF-ends terminated with index matching gel (G608N3, Thorlabs, Göteborg, Sweden), LSPR OF segment Ø200 $\mu$ m MM OF (FT200EMT, Thorlabs, Göteborg, Sweden).
The data acquisition was obtained with the program Spectrasuite (Ocean Optics, Oslo, Norway), and the OFs were spliced using a Fitel Fusion Splicer (Furukawa Electric, Tokyo, Japan).

The FO-sensor setup illustrated in Figure 3 consist of the following components; ${\lambda }_{\mathrm{II}}$ broadband source (MBB1F1, 470–850 nm, Thorlabs, Newton, NJ, USA), ${\lambda }_{\mathrm{I}}$ broadband source (S5FC1005S, 1550 nm, 50 nm bandwidth, Thorlabs), 50:50 coupler MM (50/50, FCMH2-FC, 400–1600 nm, Thorlabs), 50:50 coupler SM (50/50, 84075633, 1550 nm, Bredengen, Oslo, Norway), double-clad optical fiber (DCOF) coupler (DC1300LEB, MM 400–1700 nm, SM 1250–1550 nm, Thorlabs), ${\lambda }_{\mathrm{II}}$ spectrometer (QE65Pro, Ocean Optics, Dunedin, FL, USA), ${\lambda }_{\mathrm{I}}$ spectrometer (NIRQuest-512-1.7, Ocean Optics), loose fiber-end terminated with index-matching gel (G608N3, Thorlabs), LSPR and FP sensor segment with Ø125 µm DCOF (DCF13, Thorlabs).
Data acquisition was performed with the Spectrasuite program software (Ocean Optics) and the OFs were spliced using a Fitel Fusion Splicer (Furukawa Electric, Yokohama City, Japan).