Agilent/Keysight N7761A Single-Channel Variable Optical Attenuator

Agilent / Keysight Optical Component Test Systems.

Model
Agilent / Keysight N7761A
Calibration
Available on request
Price
$3,100
Status
In stock
RFQ ref
N7761A
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This unit

The Keysight N7761A is a single-channel variable optical attenuator designed for precise control of optical power in single-mode fiber applications. It integrates multiple functions, including attenuation setting and active power control, within a compact, half-width rack unit form factor, contributing to reduced capital expenditure and optimized laboratory or production floor space. This instrument offers fast and precise power level adjustments, with settling times of 100 ms for power and 20 ms for attenuation, enhancing test throughput. Its ability to maintain constant output power through active power control is beneficial for automated test sequences. The N7761A supports remote control via LAN, USB, and GPIB interfaces, ensuring compatibility with existing test setups and control systems. It is also compatible with programs developed for legacy Keysight 8157x and 8156x modular attenuators. The inclusion of a user-friendly graphical user interface (GUI) software simplifies integration and operation.

Technical Specifications * Measurement Capability: * Settling Time: * Attenuation: 20 ms * Power: 100 ms * Attenuation Transition Speed: 0.1 to 1000 dB/s (selectable) * Maximum Input Power: +23 dBm * Insertion Loss: ≤ 1.2 dB

  • Attenuation Range: 0 dB to 40 dB (45 dB typical)
  • Wavelength Range: 1200 nm to 1700 nm or 1260 nm to 1640 nm
  • Fiber Type: Single-Mode Fiber (SMF)
  • Connector Interface: FC/PC straight (Option -021)
  • Power Requirements: AC 100 - 240 V ± 10%, 50/60 Hz, 60 VA max
  • Operating Altitude: Maximum 2000 m
  • Pollution Degree: Designed for pollution degree 2

System Capability * Form Factor: Single instrument in one half-width rack unit

  • Legacy Compatibility: Fully compatible with programs developed using the Keysight 8157x and 8156x modular attenuators
  • Control Interfaces: LAN, USB, and GPIB for remote control
  • Software: Includes powerful and user-friendly GUI software
  • Configuration Storage: Two instrument configurations can be stored and recalled

Applications * Optical transceiver testing

  • Optical network integration testing

Why Choose Aumictech for Agilent/Keysight N7761A?

At Aumictech, we specialize in supplying high-end optical test and measurement equipment. Whether you need precise attenuation control, enhanced test throughput, or seamless integration into automated test systems, our team ensures the Agilent/Keysight N7761A delivers maximum performance for your optical component and network testing applications.

Agilent / Keysight N7761A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight N7761A. Calibration covers attenuation accuracy at 5 or more set values across the full range (0 to rated maximum dB), attenuation linearity, wavelength-dependent attenuation at 1310 nm, 1490 nm, and 1550 nm, insertion loss at minimum attenuation (0 dB position), and polarization-dependent loss (PDL) where applicable. 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 N7761A faults: motor and gear mechanism wear (attenuation steps or loss of smooth control), optical port contamination, EEPROM calibration data corruption. Most common faults are motor or gear mechanism wear on variable attenuators causing attenuation steps or loss of smooth control, optical port contamination reducing dynamic range, and EEPROM calibration data corruption on digitally controlled models.

Agilent / Keysight N7761A price

This Agilent / Keysight N7761A is listed at $3,100. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Agilent / Keysight N7761A calibration cost

NIST-traceable calibration for the Agilent / Keysight N7761A 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 attenuation accuracy at 5 or more set values across the full range (0 to rated maximum dB), attenuation linearity, wavelength-dependent attenuation at 1310 nm, 1490 nm, and 1550 nm, insertion loss at minimum attenuation (0 dB position), and polarization-dependent loss (PDL) where applicable. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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