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Holo-Litho 405

High-power, cost-efficient, gas laser replacement

  • 1 Watt @ 405 nm
  • Beam quality: M² = 1.15 (typ.)
  • High coherence: > 100 m coherence length (< 1 MHz linewidth)
  • Highest wall-plug efficiency
  • Hands-off operation and push-button-style user interface

The Holo-Litho 405 is the ideal replacement for the vintage, power hungry Kr+ gas lasers (406.7 nm and 413.1 nm) commonly used in holographic and lithographic applications. While gas lasers require several kilowatts of electrical power and cumbersome water cooling, the “all‑semiconductor” Holo-Litho 405 draws < 0.08 W and needs no water cooling to produce similar optical output power. This alone results in a significant reduction in cost of ownership. Furthermore the user also benefits from longer service intervals and lower refurbishment costs. Trained personnel can easily perform on-site replacements of the individual semiconductor field replaceable units, reducing down-time and increasing profitability.

The system includes a fully-automated, push-button optimization of the opto-mechanics, as well as output power stabilization. This allows an easy, hands-off and remote operation of the Holo‑Lito 405 in the often sensitive environments of holography, interferometry, and lithography.

  • Specification

    Output power 1 W
    Linewidth < 1 MHz
    Wavelength 405 nm
    Beam diameter 1.3 ± 0.3 mm  (1/e²)

     

    Beam divergence (full-angle) < 1 mrad
    Ellipticity < 10 %
    Beam pointing stability (typ.) 10 µrad / K
    Beam quality TEM00
    M² (typ.) M² x < 1.15, M² y < 1.15 (max.: M² x < 1.3, M² y < 1.3)
    Polarization > 100 : 1, linear, vertical
    Power stability (rms) drift < 1 % rms over 8 h
    RIN noise < 1 % rms (10 Hz - 10 MHz)
    Lifetime (typ.) > 5.000 hours
    Utility and Environmental Specifications
    Laser head dimensions 485 x 410 x 90 mm³ (L x W x H)
    Control unit dimensions 448 x 348 x 154 mm³ (W x D x H)
    Umbilical length 2 m
    Temperature range
    Operating 20 °C to 30 °C, stabilized to ± 3 °C, non-condensing
    Storage & shipping -10 to +50 °C, non-condensing
    Cooling requirements
    Laser head Conduction, if properly stabilized heat sink is provided. Optional cooling plate with closed loop chiller available
    Control unit Air-cooled
    Line voltage AC 100 - 240 V 50/60 Hz
    Power consumption < 100 W
    Communication interface USB, Ethernet

     

  • Applications

    • Holography
    • Lithography
    • Laser Direct Imaging

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