Fiber Coatings Measurement System

Developed by Arden Photonics (Solihull, UK) the FGC-P is a new fully automated system for directly measuring the geometry of optical fiber coatings. Able to measure fibers with coating diameters from 100 μm to 260 μm, the fast, user-friendly system is ideal for producing reliable, accurate measurements in production and R&D environments. Parameters that can be measured include coating diameter, coating non-circularity and coating-cladding concentricity in standard telecom fibers as well as in specialty products such as polarization maintaining (PM) fibers. Arden Photonics' novel liquid cell enables it to handle thin fibers with dimensions down to 60 μm cladding / 100 μm coating, and layer thicknesses as small as 10 μm.

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349nm Single Frequency Laser

UniKLasers Limited (Edinburgh, Scotland) has launched its new ultra-violet (UV) laser – The Duetto 349 – a single frequency DPSS CW device that emits at 349 nanometers (nm) with a 50 mW output. This high-performance laser can be used across a wide range of scientific research and industrial engineering processes including tasks such as Raman spectroscopy, flow cytometry, confocal microscopy, high-precision optics and biomedical engineering. The Duetto 349 only uses one nonlinear step, as opposed to two, without the need for a Nd:YAG fundamental laser at 1064 nm, making it smaller and more efficient, overall, whereas HeCd – being a large, gas filled laser - produces an output at 325 nm.

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Area Scan Module

Excelitas Technologies Corp. (Waltham, MA) announced the LINOS® d.fine HR Area Scan Module, which enables area scan applications for the company’s d.fine HR 2.4/128 3.33× high-resolution inspection lens. The combination of d.fine HR Lens and new Area Scan Module features a large image circle up to 82 mm and a high resolution up to 300 Lp/mm in a spectral distribution of 400 nm – 750 nm. It is ideal for 120MP and 150MP sensors used in optical inspection and machine vision applications in the semiconductor, flat panel display (FPD) and electronics manufacturing industries. The d.fine HR Lens with Area Scan Module accessory can be used with common area scan cameras over 150 MPixel and pixel sizes down to 3.5 μm for optical inspection.

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Optical Filters

Alluxa, Inc. (Santa Rosa, CA) developed specialty optical filters used aboard the Perseverance Rover, which landed safely on Mars on February 18, 2021. Alluxa’s special notch filter is optimized for high performance over a wide-angle range in order to provide in-band light to the Scanning Habitable Environments with Raman & Luminescence for Organics and Chemicals (SHERLOC) imager. Alluxa’s filters help enable non-contact detection and characterization of organics and minerals on Mars’ surface. Developed in conjunction with NASA’s Jet Propulsion Lab in Pasadena, California, the SHERLOC instrument, part of the Perseverance payload, is a Deep UV (DUV) resonance Raman and fluorescence spectrometer that will scan for past life on Mars and help identify rock samples for possible return to Earth.

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GPU Modules

Cincoze (New Taipei City, Taiwan) has expanded the Cincoze GM-1000’s machine vision application performance with two new Quadro MXM GPU modules. Building on the GM-1000’s processing base, the MXM-RTX3000 and MXM-T1000 provide the additional GPU capacity for rapid adoption of machine vision in smart factories, from simple environmental perception applications such as positioning, measurement, identification, and sorting, to more complex vision-guided automation functions. GPU requirements for each scenario are different, so specifications must match the environment and application. The two new Quadro® MXM GPU modules broaden the GM-1000’s available selection to cover a wider range of uses.

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IR and UV Optics

Edmund Optics® (EO) (Barrington, NJ) has released Zinc Selenide (ZnSe) Wedged Windows, which are ideal for infrared (IR) applications, and TECHSPEC® Calcium Fluoride (CaF2) Aspheric Lenses, which have high transmission from ultraviolet (UV) to IR wavelengths. Zinc Selenide (ZnSe) Wedged Windows are designed for use with high-power CO2 laser systems and are available in two wedge angle options: 30 arcmin or 3°, which help to eliminate etalon fringe effects as well as to prevent cavity feedback. TECHSPEC® Calcium Fluoride (CaF2) Aspheric Lenses have high transmission from 200nm (UV) to 7 μm (IR). The low refractive index of calcium fluoride reduces Fresnel reflection loss without the use of anti-reflection (AR) coatings.

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Photonics & Imaging Technology Magazine

This article first appeared in the May, 2021 issue of Photonics & Imaging Technology Magazine.

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