Agilent/Keysight 81661A,Optical Power Head

The Agilent/Keysight 81661A is a precise wavelength meter designed for accurate measurement of optical signals. It offers high resolution and supports a wide wavelength range, making it suitable for various applications in optical communication and testing. This instrument ensures reliable and repeatable measurements, essential for research, development, and manufacturing environments.

Model
Agilent / Keysight 81661A
Calibration
Available on request
Price
$2,899
Status
In stock
RFQ ref
81661A
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This unit

The Agilent/Keysight 81661A is an optical power head designed for precision measurement of optical signal power in telecommunications and photonics applications. This sensor integrates with compatible mainframe systems to deliver reliable, repeatable power measurements across defined wavelength bands. It serves optical network testing, research and development, and manufacturing environments where accurate optical power characterization is essential.


Technical Specifications

Measurement Performance

  • Optical power measurement across telecommunications and general optical testing wavelengths

  • High measurement accuracy with uncertainty dependent on wavelength, power level, and ambient conditions

  • Fine resolution enabling detection of small power variations

  • Rapid measurement speed supporting efficient production testing cycles

  • High long-term and short-term stability for consistent results over time

  • Excellent measurement repeatability yielding highly similar sequential measurements Optical Interface

  • Standard optical connectors compatible with common fiber optic patch cords (FC/PC, SC)

  • Compatibility with single-mode (SMF) and multi-mode (MMF) fibers Electrical Requirements

  • Powered from compatible mainframe or power meter host instrument


Key Features



  • Direct integration with Agilent/Keysight mainframe test systems

  • Stable performance under varying environmental conditions

  • Optimized for spectral bands relevant to optical communications

  • Standard fiber optic connector compatibility


Typical Applications



  • Optical network testing and validation

  • Research and development in photonics

  • Manufacturing quality assurance and characterization

  • Optical signal power verification in telecommunications systems


Compatibility & Integration The 81661A connects directly to Agilent/Keysight mainframe instruments, requiring no independent power supply. Optical connection is achieved through standard patch cords with FC/PC or SC connectors. Performance characteristics remain consistent across both single-mode and multi-mode fiber applications.

Agilent / Keysight 81661A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 81661A. Calibration covers detector responsivity across all specified wavelengths (typically 800-1700 nm range), absolute power accuracy, and EEPROM calibration coefficient update. Compatible with Agilent/HP 8163A/B, 8164A/B, and 8166A/B mainframes.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Common Agilent / Keysight 81661A faults: FC/PC connector damage, EEPROM failure (mainframe shows unrecognized sensor), reduced responsivity. Common faults include FC/PC input connector damage, EEPROM failure causing the module to appear unrecognized by the mainframe, and reduced detector responsivity from contamination.

Agilent / Keysight 81661A price

This Agilent / Keysight 81661A is listed at $2,899. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Agilent / Keysight 81661A calibration cost

NIST-traceable calibration for the Agilent / Keysight 81661A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers detector responsivity across all specified wavelengths (typically 800-1700 nm range), absolute power accuracy, and EEPROM calibration coefficient update. Compatible with Agilent/HP 8163A/B, 8164A/B, and 8166A/B mainframes.. Turnaround is 1 to 3 business days after receipt. See full calibration details →