DOUBLE-CLAD FIBER COUPLERS
The double-clad fiber couplers developed by Castor combine single-mode light transmission with multimode light transfer. Light transmission in the core is quasi-lossless from Port A to Port S, and again from Port S to Port A (see diagrams below). In the inner cladding of the double-clad fiber, light transfer occurs from the inner cladding of Port S to the multimode branch called Port B in couplers designed for light collec...
COLLECTION - LARGE INNER CLADDING
DC1300LE
SM wavelength range: 1250-1550nm*
SM core insertion loss: ≤0.5 dB
SM cutoff wavelength: ≤1250nm
MM inner cladding transfer: ≥60%
* Performances not guaranteed in water absorption region centered at 1388nm
DCF: 9/105/125 µm, 0.12/0.2NA
MMF: 200/220 µm, 0.22 NA
Ideal for systems combining OCT with fluorescence imaging.
COLLECTION - SMALL INNER CLADDING
BI-DIRECTIONAL
DC1300LQ1
SM wavelength range: 1250-1600nm
SM core insertion loss: ≤0.5 dB
SM cutoff wavelength: ≤1250nm
MM transfer out (Port S to B): >55%
MM transfer in (Port B to S): >75%
DCF: 9/105/125 µm, 0.12/0.22NA
MMF: 105/125 µm, 0.15NA
Ideal for combining OCT and laser coagulation/therapy.
Soon available at Thorlabs.
DC1300LQ2
SM wavelength range: 1250-1600nm
SM core insertion loss: ≤0.5 dB
SM cutoff wavelength: ≤1250nm
MM transfer out (Port S to B): >70%
MM transfer in (Port B to S): >60%
DCF: 9/105/125 µm, 0.12/0.22NA
MMF: 105/125 µm, 0.22NA
Ideal for combining OCT and diffuse spectroscopy or fluorescence imaging.
Soon available at Thorlabs.
DC1060LQ2
SM wavelength range: 960-1260nm
SM core insertion loss: ≤0.5 dB
SM cutoff wavelength: ≤960nm
MM transfer out (Port S to B): >55%
MM transfer in (Port B to S): >75%
DCF: 4/102/125 µm, 0.19/0.24NA
MMF: 105/125 µm, 0.22NA
Ideal for combining OCT and laser coagulation/therapy.
Soon available at Thorlabs.