Combined portfolio for ROADM line cards will include fixed- and flex-band 1xN WSS, tunable mux/demux, dual-chip pump lasers, passive components, arrayed-EDFAs, optical channel monitors and optical time domain reflectometers
Experimental setup designed by the researchers. PD, photodiode; MMF, multimode fiber. (Left inset) Near-field image of the fiber modes at the HC-PCF endface at the trapping wavelength (1064 nm) superimposed on a scanning electron micrograph (SEM) of HC-PCF structure. (Right inset) Measured optical loss spectrum of the D2OD2O-filled HC-PCF.
used 3D printing to make an inexpensive
and small hyperspectral imager. Feasibility tests showed that 3D printing can
be used to produce prototype parts sufficiently accurate for optical systems. Shown
is the transmission grating holder: (1) detector lens, (2) 25 Ã— 25 mm2
600 grooves/mm transmission grating, (3) 3D printed grating holder, and (4)
Collimator-slit-front-optics assembly.Courtesy of Fred Sigernes, University Centre, Svalbard.