1. General Information

• Model: ZMI‑7714

• Part Number: 8070‑0278‑11

• Manufacturer: ZYGO (AMETEK)

• Type: HeNe, CW, Two‑Frequency (Heterodyne), Linearly Polarized

• Application: High‑precision interferometry, multi‑axis metrology, long‑range (>50 m) measurements

• Cooling: Water‑cooled

• Optical Isolation: Yes (prevents back‑reflection damage)

• Beam Diameter: 8 mm

• Mount: Standard mount

• Dimensions: ~500 × 120 × 100 mm

• Weight: ~6.8 kg (15 lb)

2. Optical Specifications

• Vacuum Wavelength: 632.8 nm

• Output Power: > 1.35 mW（Typical 1.35–2.0 mW）

• Polarization: Two orthogonal linear polarizations

• Beat Frequency: 20 MHz ± 1600 Hz

• Frequency Stability (1 hr, 3σ): 0.5 ppb（ultra‑stable）

• Wavelength Stability:

  • 1 hour: 0.0005 ppm (0.5 ppb)

  • 24 hours: ±0.001 ppm

• Beam Pointing Stability: < 0.05 arcsec/°C

• Max Range: 100 m（with 8 mm beam）

3. Electrical & Power

• Power Supply: ±15 VDC ±0.5 V

  • +15 V: 2.5 A

  • −15 V: 1.5 A

• Power Dissipation (max):

  • Warm‑up: 65 W

  • Operation: 55 W

• Warm‑up Time:

  • Laser out: < 15 s typical

  • Full stability: ~15–20 min

4. Environmental & Cooling

• Operating Temp: 15 °C to 35 °C

• Storage Temp: −40 °C to 75 °C

• Humidity: 0%–90% RH, non‑condensing

• Water Cooling:

  • Flow rate: 1.5–2.0 L/min

  • Inlet temp: 18–25 °C

  • Pressure: 2–4 bar

• Laser Safety: Class IIIa

5. Model Code (8070‑0278‑11) Breakdown

• 0278: 7714, water‑cooled, 8 mm beam, high power

• ‑11: Standard mount, specific factory configuration

6. Compatibility

• Works with ZYGO ZMI‑240X, ZMI‑4X04 interferometer boardsZYGO.

• Ideal for long‑range, multi‑axis, high‑precision industrial and semiconductor applications.