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Numerical Aperture

Numerical Aperture news and technical articles from Laser Focus World. Search Numerical Aperture latest and archived news and articles

  1. Gallium phosphide lens attains numerical aperture of 2.0

    Article

    Mon, 24 Jan 2000

    … Digital Instruments (Santa Barbara, CA) have built a solid-immersion-lens (SIL) microscope that reaches a numerical aperture (NA) of 2.0 at visible wavelengths--33% higher than that of oil-immersion objectives and previously reported …

  2. HIGH-POWER DIODE LASERS: Low-numerical -aperture direct diode laser maintains high power

    Print

    Tue, 1 Mar 2011

    … characteristics: The diode module delivers a laser output of 100 W from a fiber with a diameter of only 100 μm and a numerical aperture (NA) less than 0.12. Along with the beam-waist size, the NA is directly related to beam quality: At a given …

Related Topics:

  1. Diffraction Grating
  2. Gratings
  3. Beam Divergence
  4. Specialty Fibers
  5. Fiber Amplifier
  6. Diode Array
  1. HIGH-POWER DIODE LASERS: Low-numerical -aperture direct diode laser maintains high power

    Article

    Tue, 1 Mar 2011

    … characteristics: The diode module delivers a laser output of 100 W from a fiber with a diameter of only 100 μm and a numerical aperture (NA) less than 0.12. Along with the beam-waist size, the NA is directly related to beam quality: At a given …

  2. Power-delivery fibers

    Print

    Thu, 1 Aug 1996

    … Power-delivery fibers The UltraSil line of high- numerical - aperture silica-silica fibers are designed for power delivery ..... military, and industrial markets. The fiber has a numerical aperture of 0.29 and can transmit wavelengths as long …

  3. High-power diodes from Alfalight come in a six-pin package

    Article

    Fri, 16 Jul 2010

    The 808C series of laser diodes has output of 3.5 W at 808 nm through a 105 ?m fiber with numerical aperture of 0.15.

  5. High-temperature optical fiber

    Print

    Sat, 1 Apr 1995

    Silica-clad quart¥fibers have a numerical aperture of 0.22 (25° acceptance cone) and transmit in the 200- to 2100-nm spectral range. Available in standard bundle diameters of 1/16, 1/8, and 1/4 in., they are rated u¥to 2000°F (1093°C). Bundles are practically free of secondary fluorescence and do ...

  6. Chiral Photonics pitch-reducing optical fiber array features a monolithic glass structure

    Article

    Wed, 2 May 2012

    … channels close together for efficient, space-saving coupling. The technology reduces channel pitch while tailoring numerical aperture (NA) of individual channels to meet customers’ needs. Traditional solutions for coupling photonic ICs utilize …

  7. Ultra-bendable ClearCurve VSDN optical fiber from Corning connects consumer devices

    Article

    Wed, 7 Mar 2012

    … reliability. Unlike fibers for telecommunications, ClearCurve VSDN optical fiber has a larger core size and higher numerical aperture , enabling lower-cost connectivity--essential for consumer applications--while exceeding the bandwidth needs …

  8. PURAVIS fibers improve white-light transmission, chemical stability for medical & industrial applications

    Article

    Thu, 2 Feb 2012

    … ideally-suited for medical applications such as endoscopy and surgical microscopy. As a result of the improved numerical aperture by a 5 degree full angle, the light guide captures more light and the low attenuation in the visible range results …

  9. QUANTUM PHYSICS: Semiconductor chip converts laser to visible quantum fluid

    Print

    Wed, 1 Feb 2012

    … illumination from the two pump lasers is chopped at 100 Hz to avoid heating and input directly to the chip through a 0.7 numerical - aperture lens. The chip is held at cryogenic temperatures below 50 K, and images are recorded on an uncooled silicon CCD …

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