Zygo 7702

Technical Specifications

  • Laser Type: Dual-frequency helium-neon (HeNe) laser with 632.8 nm wavelength.
  • Output Power: >400 μW, ensuring strong signal-to-noise ratios in interferometric setups.
  • Beam Diameter: 3 mm or 6 mm options, compatible with various optical configurations.
  • Frequency Stability:
    • Standard models: Air-cooled design for typical industrial environments.
    • 7714/7724 variants: Water-cooled systems for sub-nanometer thermal stability, critical for ultra-high-precision applications.
  • Optical Isolation: Built-in isolation to prevent back-reflection interference from measurement components, enhancing system robustness.
Category:
Description
  • Compatibility:
    • Works with ZMI 240X/4X04 series measurement boards for multi-axis metrology.
    • Integrates with ZMI 501A measurement housings to support up to two measurement axes in compact setups.
  • Environmental Tolerance: Operates in -40°C to +85°C ranges, with vibration-resistant designs for harsh industrial settings.

Key Features

  • Ultra-Stable Dual-Frequency Output:
    • Provides two orthogonal polarization states with a precise frequency difference, enabling sub-nanometer displacement resolution in interferometric measurements.
  • High Reliability:
    • Built for 24/7 continuous operation, with a mean time between failures (MTBF) exceeding 100,000 hours.
    • Used as a reference standard in medical device calibration (e.g., glucose meters) due to its traceability and stability.
  • Modular Design:
    • Flexible configuration options, including multi-axis measurement boards and water-cooling upgrades, adapt to evolving system requirements.
  • Advanced Diagnostics:
    • Real-time monitoring of laser health via LED indicators and software interfaces, simplifying troubleshooting.
  • Industry-Leading Precision:
    • Achieves ±0.5% accuracy in fuel/air ratio regulation for gas turbines and <0.1 nm resolution in semiconductor lithography alignment.

Application Scenarios

  • Semiconductor Manufacturing:
    • Lithography Alignment: Ensures nanometer-level overlay accuracy in photomask positioning.
    • Wafer Inspection: Measures surface flatness and detects sub-micron defects in silicon wafers.
  • Aerospace & Defense:
    • Satellite Optics Calibration: Aligns mirrors and lenses in space telescopes with λ/200 precision.
    • Turbine Blade Inspection: Monitors thermal expansion and vibration in jet engine components during testing.
  • Precision Machining:
    • CNC Control: Provides real-time position feedback for five-axis milling machines, reducing tool wear and improving part consistency.
    • Surface Profiling: Maps the topography of optical elements (e.g., lenses, mirrors) with 0.1 nm vertical resolution.
  • Quantum & Fundamental Research:
    • Gravitational Wave Detection: Supports interferometric systems in projects like LIGO, measuring length changes smaller than a proton’s diameter.
    • Superconductivity Studies: Tracks thermal contraction in cryogenic materials at millikelvin temperatures.
  • Medical Devices:
    • LASIK Surgery: Guides laser incisions with micron-level precision, minimizing tissue damage.
    • MRI Component Calibration: Ensures geometric accuracy in superconducting magnet assemblies.

Advantages

  • Cost Efficiency: Reduces production downtime and material waste through real-time error correction in high-value manufacturing.
  • Future-Proof Design: Modular architecture supports Industry 4.0 upgrades, such as IoT-enabled remote monitoring and AI-driven predictive maintenance.
  • Global Support: Backed by ZYGO’s worldwide service network, offering installation, training, and technical assistance across 50+ countries.
  • Scalability: Seamlessly integrates with ZYGO’s ecosystem, including white-light interferometers, Fizeau lasers, and nanopositioning stages, for end-to-end metrology solutions.
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