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Agilent (Keysight/HP) 8504B Precision Reflectometer

The Keysight 8504B precision reflectometer is a cutting-edge device designed for high-accuracy lightwave reflection measurements. It offers exceptional sensitivity, achieving return loss measurements beyond 80 dB—even in the presence of larger reflections. The device can precisely identify individual reflections based on distance or position, distinguishing reflections as close as 25 µm apart (equivalent distance in air). This level of precision makes it an invaluable tool for advanced optical testing and analysis.
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Agilent 8504B Precision Reflectometer

The 8504B precision reflectometer is used to measure return loss on a variety of connectorized components in single-mode fiber.

Specification of the 8504B:

  • Return Loss Range:
    • 1300 nm: 10 to 80 dB
    • 1550 nm: 10 to 80 dB
  • Compatible Fiber: 9/125 µm
  • Connector Type: FC/PC
  • Sweep Speed: 18 mm/sec
  • Return Loss Accuracy: ± 2.0 dB
  • Measurement Span: 1 to 400 (270) mm
  • Source Characteristics:
    • Peak Wavelength: 1308 nm ± 30 nm; 1550 nm ± 30 nm
    • Spectral Width (-3 dB) 55 nm
    • Average Power: -17 dBm
  • Two-Event Spatial Resolution:
    • 1300 nm 25 (17) µm
    • 1550 nm 65 (44) µm
  • Two-Event Spatial Accuracy:
    • 1 to 10 mm ± 2% of span
    • 10 to 400 mm ± 1% of span

Optical Module Connector Interfaces are sold separately. Three connectors are needed:

  • 81000FI: FC/PC, N-Keying (2.20 mm nominal)
  • 81000KI: SC/PC
  • 81000VI: ST/PC

Accesories:

  • 8504B-001 Accessory Kit Includes a cable tray, six pairs of fiber optic cable (0.5 meter to 1.75 meters), and FC/PC barrel.
  • 8504B-1CM Rack Mount Kit (no handles)
  • 8504B-1CN Handle Kit
  • 8504B-7CP Rack Mount Kit with handles
  • 8504B-UK6 Calibration Certificate

Accessories are not included in price. Contact us for availability and pricing.

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8504B
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