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Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus (SCUVA)
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Published on: October 31, 2011

Bathymetry CuBr laser.

D W Feldman, C S Liu, I Liberman

    Applied Optics
    |April 17, 2010
    PubMed
    Summary
    This summary is machine-generated.

    A compact copper bromide (CuBr) laser was developed for bathymetry applications. This laser delivers short pulses at high repetition rates, offering efficient performance in a sealed-off discharge design.

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    Area of Science:

    • Optics and Photonics
    • Laser Technology
    • Geophysical Instrumentation

    Background:

    • Bathymetry requires precise laser systems for accurate depth measurement.
    • Short-pulse lasers are crucial for high-resolution underwater surveys.
    • Developing compact, efficient, and long-lived laser sources is an ongoing challenge.

    Purpose of the Study:

    • To design and evaluate a copper bromide (CuBr) laser for bathymetry.
    • To achieve short pulse width and high peak power for effective depth sounding.
    • To optimize laser performance within a compact, sealed-off discharge system.

    Main Methods:

    • Utilized a copper bromide (CuBr) discharge laser medium.
    • Configured for short-pulse generation with a pulse width of 4.5 nanoseconds.
    • Operated at a high repetition rate of 16 kilohertz.
    • Achieved a peak power of 30 kilowatts and 140 microjoules per pulse.

    Main Results:

    • Demonstrated a compact, sealed-off CuBr laser system.
    • Achieved a pulse energy of 140 microjoules at a 16 kHz repetition rate.
    • Obtained a pulse width of 4.5 nanoseconds and a peak power of 30 kW.
    • Reported an overall laser efficiency of 0.14%.

    Conclusions:

    • The developed CuBr laser is suitable for bathymetry applications.
    • The laser's performance (short pulse, high repetition rate) meets key requirements for depth measurement.
    • The compact and sealed-off design enhances practicality and longevity for field use.