Supercontinuum light source Cavity-Ringdown Reflectometer


GLACIER®-C is a further development of our successful GLACIER® reflectometer. GLACIER® allows measuring the losses of optical coatings down to 5 ppm using the extremely sensitive cavity ring-down spectroscopy method. It is therefore often used to characterize highly reflective mirrors where conventional reflection and absorption measurements are insufficient. The innovation of GLACIER®-C is the employment of a super- continuum laser source in combination with a tunable monochromator. This allows a freely selectable wavelength within 450 nm and 2000 nm and, thus, offers an unprecedented flexibility as it is not limited to available diode laser wavelengths. GLACIER®-C combines the unrivalled sensitivity of GLACIER® with a unique wavelength flexibility, creating the most powerful device on the market. The device features high-speed data acquisition and allows to record measurements within seconds. Easy and fast change of wavelength is facilitated through the user friendly software and easy change of optics on kinematic mounts.

Key Product Features

  • Reflectivity measurements
    • Reflectivities up to 99.9995%
    • Various angles of incidence: 5° - 45° (and 0°)
    • s and p polarization (separately)
  • Antireflective coating characterization: Reflectivity down to 0.0005% (5 ppm)
  • Simple and reproducible alignment for 0.5", 1" and 2" optics
  • Spring-loaded mirror fixtures for reproducible mounting without strain
  • Computer and user-friendly software interface included
  • High-speed data acquisition and real-time analysis
  • Super-continuum laser source and tunable monochromator. Easy and fast change of wavelength
  • Freely selectable wavelength: 450 - 2000 nm
  • Footprint: 90 x 55 cm2

A family of GLACIERs to choose from. Pick the one that suits your needs best:

Number of wavelengths One Three Three*
Maximum number of wavelengths Three Four Unlimited!
Possible to add more wavelengths at a later point Yes** Yes** Yes
Wavelength range 375 — 1550 nm
(diode laser based)
355, 532 and 1064 nm
4th wavelength:
diode laser based
(375 — 1550 nm)
450 — 2000 nm
(freely selected)
Laser source Diode laser Microchip laser Supercontinuum with monochromator
Footprint 90 x 45 cm2
90 x 55 cm2 for more
than 1 wavelength
90 x 55 cm2 90 x 55 cm2
Reflectivity measurements Reflectivities up to 99.9995%
Antireflective coating characterization Reflectivity down to 0.0005% (5 ppm)
Angle of incidence 5° - 45° and 0°
Polarization s and p (separately)
Optics size 0.5", 1"
(2” and more upon request)
Software Computer and user-friendly software interface included

*Included in the basic version, more can be added.

**Factory upgrade required. For GLACIER, a bigger footprint should be considered in advance (90 x 55 cm2).