UltraFast Innovations

GLACIER® — Cavity-Ringdown Reflectometer & Loss Meter (CW Laser Sources)

Contact for pricing
Contact Sales
RoHS REACH

GLACIER® is a precision Cavity-Ringdown (CRD) Reflectometer and Loss Meter that utilizes cavity-ring-down spectroscopy to measure reflectivity, transmission, scattering and absorption of high-end optical coatings — with single ppm sensitivity.

GLACIER uses CW laser sources and is the foundation of UFI's GLACIER family of metrology instruments. It is essential for characterizing low-loss mirrors used in gravitational-wave detectors, optical-frequency combs, atomic clocks and resonant cavity experiments.

Key Product Features

  • Single-ppm sensitivity for reflectance, transmission, absorption & scattering
  • CW laser sources covering multiple discrete wavelengths
  • Wavelengths: 532, 633, 800, 1064, 1550 nm (extendable on request)
  • Compatible with high-reflectivity mirrors (R > 99.999%)
  • Compact bench-top form factor
  • Automated measurement software

Family Members

  • GLACIER — CW Cavity-Ringdown Reflectometer (this model)
  • GLACIER-C — Supercontinuum-source Cavity-Ringdown Reflectometer (broadband)
  • GLACIER®-123 — 1064 nm Harmonics Reflectometer & Loss Meter

Developed at the Max-Planck-Institute of Quantum Optics. UFI is a spin-off from LMU Munich and the Max Planck Society.

ModelsGLACIERGLACIER-CGLACIER®-123
Light sourceSingle-wavelength CW lasersSupercontinuum (broadband)1064 nm + harmonics
Wavelength options532 / 633 / 800 / 1064 / 1550 nm (extendable)Continuous broadband (configurable)1064, 532, 355 nm (fundamental + harmonics)
Number of wavelengthsConfigurable (1-5+)Broadband / continuousUp to 3 simultaneously
Measurement typeReflectance / Transmission / Absorption / ScatterSame, broadbandSame, harmonic-resolved
SensitivitySingle ppmSingle ppmSingle ppm
Compatible R rangeR > 99.999%R > 99.999%R > 99.999%
CRD = Cavity-Ringdown spectroscopy.
Custom wavelengths available — contact UFI for specific requirements.

Source: UltraFast Innovations manufacturer datasheet. Download the brochure (PDF) from the Documents tab for full details.

No CAD drawings available for this product.

Product Family: Reflectometer & Loss Meter (3 variants)