Enabling Handheld, Portable, and Embedded On-Line Sensor Applications

Infrared spectroscopy is a widely used technology for quantitative and qualitative analyses of solids, liquids, and gases in applications in food and agriculture, medical, pharmaceutical, and environmental sensing. The advent of miniaturization has been spurred by the need for on-site, non-destructive, point-of-use, and rapid analyses of samples in law-enforcement applications, homeland security, food safety, on-line process control, and counterfeit detection of pharmaceutical products to name a few.

Utilizing advanced thin-film coating design and manufacturing technology in linear variable filters (LVF), JDSU is introducing an ultra-compact, lightweight, low-cost near-infrared (NIR) spectral engine that relies on an LVF as the dispersing element.

The LVF is a bandpass filter coating that has been intentionally wedged in one direction. Since the center wavelength of the bandpass is a function of the coating thickness, the wavelength transmitted through the filter will vary in a linear fashion in the direction of the wedge. The JDSU line of LVF spectral sensors uses an LVF coupled to a linear detector array to create a sensor capable of providing spectral information for a wide variety of commercial, industrial, and scientific applications.

The LVF detector, light source, collection optics, electronics, and basic operating software are fully integrated in a palm-size device and offered as a package to OEM customers.

As market requirements demand more point-of-sample and point-of-measurement capabilities, the MicroNIR™ spectrometer is designed to support easy real-time evaluation, field testing, and on-line process monitoring to enable greater numbers of samples at a lower total cost.

Key Features

• Ultra-compact: 45 mm diameter x 42 mm high
• Lightweight: <60 grams
• Robust architecture; no moving parts
• Integrated light source and collection optics
• Wavelength range:
  • 950-1650 nm; 1150-2150 nm
  • Custom ranges possible
• Diffuse reflectance or transmission measurement
• Highly customizable
• USB powered

The MicroNIR spectrometer can be customized as needed to address the specific needs of an end-use application. Please contact JDSU at MicroNIR@jdsu.com for more information.