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Related Experiment Video

Updated: Jun 19, 2026

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities
09:12

Construction of a High Resolution Microscope with Conventional and Holographic Optical Trapping Capabilities

Published on: April 22, 2013

Efficient beam-correcting holographic collimator for laser diodes.

A Aharoni, J W Goodman, Y Amitai

    Optics Letters
    |October 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

    We developed a new method for creating holographic collimators for laser diodes that corrects for wavelength shifts. This technique achieves high-efficiency, near-diffraction-limited beam collimation for diode lasers.

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    Area of Science:

    • Optics and Photonics
    • Holography
    • Laser Technology

    Background:

    • Laser diodes require precise beam shaping for various applications.
    • Holographic optical elements offer compact and efficient beam control solutions.
    • Wavelength shift during recording and readout can degrade holographic performance.

    Purpose of the Study:

    • To present a novel method for recording beam-correcting holographic collimators.
    • To address the challenge of recording-to-readout wavelength shift in holographic elements.
    • To demonstrate high-efficiency beam collimation for laser diodes.

    Main Methods:

    • A new holographic recording technique was developed.
    • The method accounts for wavelength shifts between recording and readout.
    • Holograms were recorded at 488 nm and tested for laser diode collimation at 820 nm.

    Main Results:

    • A high-efficiency, astigmatism-correcting, beam-shaping hologram was successfully recorded.
    • The hologram achieved near-diffraction-limited collimation of a diode laser beam.
    • The method demonstrates effective performance despite a significant wavelength shift.

    Conclusions:

    • The described method enables the fabrication of robust holographic collimators for laser diodes.
    • This technique overcomes limitations imposed by wavelength shifts.
    • It offers a viable solution for efficient laser diode beam control.