Technologies
MCVD (Modified Chemical Vapor Deposition)
- for deposition of silica layers doped with germanium, phosphorus and boron
- an oxygen-hydrogen burner with an automatic temperature control for deposition and collapse
- the typical outer diameter of substrate tubes is 18 mm
Optical-fiber drawing
- two 6.5 m drawing towers
- Special Gas Controls and Centorr graphite furnaces for drawing temperature range 1600-2200°C
- resistance furnace "Clasic" for drawing of "soft-glass fibers" at temperatures up to 1000°C
- optional UV or heat cured polymer coating of drawn fibers
- take-up machine (Heathway)
Optical-fiber tapering
- a gas burner or CO2 laser used for the fiber heating
DC-Magnetron Sputtering
- Balzers BAS 450
- cylindrical chamber, 445 mm x 500 mm (d x h)
- substrate rotation, substrate heating up tp 300°C
- 5x10" Al and ITO targets
- Ar and O2 atmosphere
Dip-coating (ID Lab)
- dipping/pulling speed range 0-300 mm/min
- movement range 0-500 mm
Thermal annealing
- high-temperature (1600°C) laboratory furnace Clasic
- tube furnaces for annealing temperatures up to 1000°C
Characterisation and measurement
Refractive index profiling
- preform refractive-index profiler (Photon Kinetics A2600)
- fiber refractive-index profiler (York S14)
Fiber mechanical-strength measurement
- Tiratest 2150 dynamometer
- mechanical characterisation of fibers (tensile stress, cyclic stress)
Optical fiber spectral attenuation measurement
- Ando AQ6315
- fiber spectrometers Ocean Optics USB2000, NIR256 a SD 2000
- fiber-coupled light sources (lamps, HIDs, lasers, LEDs)
Absorption spectrometry (Perkin-Elmer Lambda EZ210)
- wavelength range 190-1100 nm
Fluorescence spectrometer (Horiba Fluorolog 3)
- detectors: single-photon counter (250-850 nm), InGaAs (800-1500 nm), PbS (1000-3000 nm)
- TCSPC fluorescence lifetime measurement, excitacion at 388, 438 a 782 nm, detection in range 250-850 nm
Electro-chemical methods (PalmSens)
- voltametry, amperometry, potentiometry
Optical microscopy
- Olympus BX-51 microscope with IDS uEye CMOS digital camera (3 Mpix)
- Novel NIB-100 inverted microscope with IDS uEye CMOS digital camera (3 Mpix)