Description

Zygo 7702 8070-0102-35

I. Overview

Laser Type and Wavelength
It is a helium-neon laser, operating in a continuous-wave, two-frequency mode. The laser wavelength is precisely 632.8 nm, which falls in the red light spectrum. This wavelength is well-suited for a wide range of optical measurement applications, providing excellent beam quality and stability for accurate interference-based measurements.

Output Power
The output power of the Zygo 7702 8070-0102-35 typically exceeds 625 μW after warm-up. Some models may have an output power as high as over 650 μW. This relatively high power output enables it to support multiple measurement axes, ensuring sufficient light intensity for complex measurement setups.

Beam Characteristics

• Beam Diameter: Available in options such as 3 mm and 6 mm beam diameters. The choice of beam diameter can be selected according to the specific measurement requirements, with different diameters offering advantages in terms of beam divergence and focusability.
• Beam Pointing Stability: It exhibits remarkable beam pointing stability, with a value of less than 0.1 arc sec/°C. This high level of stability ensures that the laser beam remains accurately directed even under changing temperature conditions, which is crucial for maintaining measurement accuracy over time.
• Usable Beam Length: The usable beam length extends up to 2 m, providing flexibility in setting up measurement systems where the distance between the laser source and the measurement target may vary.
• Vacuum Wavelength Stability: Demonstrating outstanding precision, the vacuum wavelength stability is 0.01 ppm/24 hour. This stability is essential for long-term and highly accurate measurements, especially in applications where minute wavelength variations could lead to significant measurement errors.

Environmental Parameters

• Operating Temperature: The device is designed to operate within a temperature range of 10 to 30 °C. This temperature range is carefully determined to ensure the optimal performance of the laser components, preventing issues such as thermal expansion or contraction that could affect the laser's output characteristics.
• Weight: With a weight of 12 lb (5.5 kg), it is relatively compact and lightweight considering its high-performance capabilities. This makes it easier to integrate into different measurement setups without adding excessive bulk or causing stability issues.

1. High-Precision Measurement
   The Zygo 7702 8070-0102-35 is engineered to deliver sub-nanometer-level measurement accuracy. Leveraging advanced laser interferometry principles, it can precisely detect minute displacements, vibrations, and surface irregularities. In applications such as optical component manufacturing, it can accurately measure the surface flatness of lenses, ensuring that the highest quality standards are met.
2. Dual-Frequency Output
   The two-frequency output of the laser is a key feature. This allows for more accurate and robust measurements, especially in complex environments where external factors such as noise or interference could affect single-frequency lasers. The dual-frequency operation provides enhanced immunity to common measurement errors, enabling reliable measurements in various industrial and scientific settings.
3. Compatibility with Measurement Boards
   It is highly compatible with Zygo's zmi 240x and 4x04 series measurement boards. This compatibility offers users the flexibility to configure measurement systems according to their specific needs. Higher-power versions of the 7702, like the 8070-0102-35, can support the measurement of multiple axes with a single unit, streamlining the measurement process and reducing the need for multiple laser sources in some applications.
4. Stable Laser Output
   Utilizing helium-neon technology, the laser ensures stable output over extended periods. The long-term drift is minimal, which is crucial for applications that require consistent and reliable measurements over time. Whether used in continuous industrial production processes or long-term scientific research experiments, the stable laser output of the Zygo 7702 8070-0102-35 provides confidence in the accuracy of the data collected.
5. Diagnostic and Update Capabilities
   The device is equipped with an rs232 interface. This interface serves multiple purposes, including diagnostics and firmware updates. Through the rs232 connection, technicians can easily monitor the health of the laser head module, detect any potential issues, and perform necessary firmware updates to improve performance, add new features, or address any software-related bugs.

1. Industrial Automation
   In industrial automation processes, the Zygo 7702 8070-0102-35 plays a vital role in ensuring the precision of manufacturing operations. It can be used to measure the position and movement of robotic arms, ensuring accurate part handling and assembly. By providing real-time, high-precision measurements, it helps optimize production processes, reduce errors, and improve overall productivity.
2. Precision Measurement in Manufacturing
   For industries that demand high-precision manufacturing, such as aerospace and automotive parts manufacturing, this laser head module is invaluable. It can be used to measure the surface roughness, flatness, and dimensional accuracy of critical components. In aerospace, where the safety and performance of aircraft depend on the precision of components, the Zygo 7702 8070-0102-35 helps ensure that parts meet the strictest quality standards.
3. Optical Component Manufacturing
   Optical component manufacturers rely on the Zygo 7702 8070-0102-35 for the production of high-quality lenses, mirrors, and other optical elements. It can accurately measure the surface morphology of these components, including surface curvature, irregularities, and thickness variations. This enables manufacturers to identify and correct any defects during the manufacturing process, resulting in optical components with superior optical performance.
4. Semiconductor Manufacturing
   In semiconductor manufacturing, precision is of utmost importance. The Zygo 7702 8070-0102-35 can be used for wafer inspection, detecting high-density devices, ultra-low devices, and substrates with reduced line width. It helps ensure the accuracy of semiconductor manufacturing processes, contributing to higher yields and better-performing semiconductor products.
5. Scientific Research
   In scientific research, especially in fields such as material science and nanotechnology, the Zygo 7702 8070-0102-35 provides researchers with the ability to make highly accurate measurements. It can be used to study the surface properties of materials at the nanoscale, measure the movement of nanoparticles, or analyze the optical properties of novel materials. The high-precision and stable measurement capabilities of this laser head module are essential for advancing scientific knowledge in these areas.