TopWave 405

Cost-efficient, gas laser replacement – for easy, hands-off operation in lithography and holography applications

  • New: up to 2 Watt @ 405 nm
  • Low cost of operation
  • Excellent beam quality, typical M² = 1.15
  • Coherence length > 100 m

NEW: the TopWave XP 405 — a high-power 2 W laser at 405 nm, expanding the TopWave series for demanding lithographic and holographic applications. Building on the proven performance of the original TopWave 405, the XP version delivers double the output power while maintaining the same exceptional beam quality and coherence properties.

The TopWave 405 series is the ideal replacement for the bulky and power hungry Krypton ion (406.7 nm and 413.1 nm) gas lasers commonly used in lithographic and holographic applications. The TopWave 405 provides 1 W output power at 405 nm combined with an excellent beam quality. Beam diameter and M² (typ. 1.15) are designed to match the established gas laser parameters, hence allow for an easy integration without significant changes to the optical system. The noticeably higher coherence length (> 100 m) results in a clear advantage with regard to stable pattern generation in interference lithography or holography.

Highest Efficiency – low cost of ownership

While gas lasers require several kilowatts of electrical power and cumbersome water-cooling, the “all‑semiconductor” TopWave 405 draws less than 200 W and does not require water-cooling to produce similar optical output power. This alone results in a significant reduction in cost of ownership. In addition, the user also benefits from longer service intervals and lower refurbishment costs.

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  • Specification

      TopWave 405 TopWave XP 405
    Wavelength (air) 405 ± 0.5 nm
    Linewidth (@ 5 us) < 1 MHz
    Coherence length  > 100 m
    Output Power 1000 mW 2000 mW
    Output Power Adjustability 70 - 100 % 10 - 100 %
    Beam Diameter 1.5 ± 0.2 mm
    Beam Waist location Front bezel ± 25% of Rayleigh range m
    Beam Divergence (full-angle) < 0.6 mrad
    Ellipticity 0.9 - 1.1
    Astigmatismus  ± 0.25 zR
    Beam Pointing Stability  (1) ≤ 5 µrad

    Static Alignment Tolerance
    Position < ± 0.5 mm
    Angle < ± 1 mrad
    Transverse Mode TEM00
    M² 1.15 / 1.3 (typ./max)
    Polarization Orientation linear, vertical < ± 3°
    Polarization Extinction Ratio > 100 : 1
    Power Stability (RMS over 8h) < 1 %
    RMS Noise (10 Hz - 10 MHz) < 0.6 %
    Warm-Up Time
    Cold Start < 2 h < 3 h
    From Standby < 15 min
    After Crystal Shift N/A
    Lifetime (min. / typ.) 5000 / > 10000 h
    Utility and Environmental Requirements
    Laser Head
    Dimensions  (L x W x H) 500 x 295 x 127 mm3 525 x 295 x 127 mm3
    Weight 21.9 kg 22.6 kg
    Cooling Conduction (2)
    Umbilical Length 2 m
    Control Unit
    Dimensions (W x D x H) 448 x 378 x 154 mm3
    Weight 10.5 kg 11.7 kg
    Cooling Convection
    Operating Temperature Range 20 to 30 deg C
     stabilized to ± 1°C, non-condensing
    Shipping Requirements -10 to +50 deg C
    shipping in a non-condensing environment
    Input Voltage 100 - 240 V AC, 50/60 Hz
    Power Consumption < 100 (typ. 75) W < 200 (typ. 150) W
    Communication Interface Ethernet, USB Ethernet, USB

    (1) RMS over 8h @ ambient temperature drift less than ± 1 K
    (2) A sufficient heat sink must be provided to keep the laser base plate temperature ≤ 30 °C. An optional cooling plate with closed loop chiller is available upon request.

  • Applications
  • Downloads
  • Literature

    Article: Ulrich Eismann Direct and frequency-converted diode lasers provide all wavelengths for holography, Laser Focus World (2018), Japanese version

    Application Note: Resource-efficient generation of large-area micro and nanostructures, Photonics Views, February / March 2023

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