COREXPERT

            Optical Fiber Preform Analyzer

New generation, compact, benchtop preform analyzer, which measures laser beam deflection and calculates

• Refractive index,
• diameter and concentricity,
• non-circularity

of each layer in a fiber preform. It is also able to calculate equivalent step-index profile parameters for the preform, which allows prediction of several drawn fiber properties.

Equipped with a myriad of technological improvements, Nanoliz offers unprecedented accuracy, precision, user-friendliness and several other abilities.
• Record accuracy. Measurement error < 0.05 x 10-3
• Record resolution & repeatability. Repeatability better than 0.005 x 10-3
• Can be configured to measure at any wavelength between 405 nm- 940nm. You can measure at more relevant wavelengths with- out being limited to He-Ne wavelength.
• Immune to index ripples on VAD preforms.
• A single measurement cell can be used for all preforms regard- less of their thickness. No need to hassle with cell replacement.

World-Record Resolution C Repeatability

Patented optical design, better system design and highest quality opto-mechanical components yield better resolution & repeatability < 5 x 10-5.

1. Extra-long optical path after the
2. Corexpert employs one of the best translation stages This introduces negligible deflection measurement error from the device.
3. High resolution position sensitive detector, which can measure 200 nm deflection of a laser beam, is another enabler of our unprecedented Corexpert's combination of long optical path and high-resolution position sensor makes it possible to measure refractive index difference of fiber preforms with a resolution of 5 x 10-5.
4. Fiber laser instead of He-Ne Laser: Even the best He-Ne lasers exhibit a beam pointing error higher than 01 mrad. We use lasers whose beam pointing stability is better than 0.002. mrad. According- ly, Corexpert has a higher measurement resolution and repeatability. Plus, our combination of SM fiber-coupled lasers + diffraction limited optics perform much better than He-Ne lasers in terms of laser spot size, too.