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Misalignments

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

  1. BIOMEDICAL OPTICS: Surface reflections reveal hidden eye misalignments

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    Fri, 1 Jun 2007

    Purkinje images have been a traditional source of information in studying the optics of the eye.

  2. OPTICAL ASSEMBLY: Adhesive bonding is stable enough for LISA

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    Fri, 1 Oct 2010

    hydroxide-catalysis- and adhesive-bonded joints showed that the adhesive-bonded joints achieved angular (tip-tilt) misalignments just as small as those for hydroxide-catalysis-bonded joints. Further measurements showed that this was due to the

  1. OPTICAL ASSEMBLY: Adhesive bonding is stable enough for LISA

    Article

    Fri, 1 Oct 2010

    hydroxide-catalysis- and adhesive-bonded joints showed that the adhesive-bonded joints achieved angular (tip-tilt) misalignments just as small as those for hydroxide-catalysis-bonded joints. Further measurements showed that this was due to the

  2. MICRO-OPTICS: Parallel-optics array monitors sources for data communications

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    Wed, 1 Sep 2010

    structure and divergence of the VCSEL itself. These changes can occur during the operation of the module, as opposed to misalignments , which do not vary much after the module is assembled. Because changes in VCSEL output affect both fiber-coupled power

  3. MICRO-OPTICS: Parallel-optics array monitors sources for data communications

    Article

    Wed, 1 Sep 2010

    structure and divergence of the VCSEL itself. These changes can occur during the operation of the module, as opposed to misalignments , which do not vary much after the module is assembled. Because changes in VCSEL output affect both fiber-coupled power

  4. Ultraviolet source prints 0.1-µm transistor gate

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    Mon, 1 Jul 1996

    ports it to a computer for analysis. Misalignments between the mask and wafer alignment ..... actuators. The system detects angular misalignments to a precision of 20 µm and linear ..... actuators can correct mask-to-wafer misalignments to this level. A separate grazing

  5. SILICON PHOTONICS: On-chip router doesn’t muddle signals

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    Sat, 1 Nov 2008

    spectral range; as a result, shifts of greater than 2 nm in the rings’ resonant wavelength due to fabrication-related misalignments of the rings would render the rings unable to tune to the source wavelength. In a practical on-chip network containing

  6. Invisible quantum tripwire senses intruders that don't intercept photons

    Article

    Thu, 1 Apr 2010

    State University (Baton Rouge, LA) have designed a more practical version that tolerates—and even thrives—on misalignments and lossiness. Their invisible quantum tripwire (IQT) consists of a polarization interferometer through which a photon

  7. FIBER LASERS: Fiber-laser power scales coherently and spectrally

    Article

    Sun, 1 Jun 2008

    spectral addition, was measured to be 82%, attributed mainly to losses at the blazed diffraction grating and also to small misalignments in the parallelism of the four collimated fiber-laser beams. Analysis of the spectral output of the combined beam compared

  8. Software tool boosts beam analysis efficacy

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    Sat, 1 Nov 2003

    the compounding of several types of beam aberrations and misalignments can easily generate a level of complexity that is not ..... on beam quality of aberrations, fabrication errors, and misalignments is beyond the scope of purely analytical methods and requires