Agilent/Keysight 81554SM High Sensitivity Singlemode Optical Head

The Agilent/Keysight 81554SM is a versatile optical module designed for high-performance testing and characterization of optical components and systems. This module provides precise control and measurement capabilities, making it suitable for various applications in telecommunications, data communications, and optical sensing.

Model
Agilent / Keysight 81554SM
Calibration
Available on request
Price
$889
Status
In stock
RFQ ref
81554SM
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This unit

The Agilent/Keysight 81554SM is a dual-wavelength Fabry-Perot laser source module engineered for precision optical testing across telecommunications and data communications networks. Operating at 1310 nm and 1550 nm with single-mode fiber output, this module delivers stable, back-reflection-insensitive performance in a compact form factor designed for integration into Agilent/Keysight lightwave multimeter mainframes.


Technical Specifications

Wavelengths & Output

  • Dual wavelengths: 1310 nm ± 20 nm and 1550 nm ± 20 nm

  • Single-mode fiber: 9/125 µm

  • Output power: Greater than -1 dBm (typical range -1.2 dBm to +1.47 dBm across wavelengths)

  • Spectral bandwidth: Less than 2.5/4 nm rms

  • Output attenuation: 0 dB to 6 dB, adjustable in 0.1 dB steps Modulation & Timing

  • Internal digital modulation frequencies: 270 Hz, 1 kHz, 2 kHz (selectable)

  • Pulse-shaped outputs with 50% duty cycle Stability & Warm-up

  • High long- and short-term stability with 20-minute recommended warm-up time

  • Long-term CW stability doubles after one minute of laser operation Analog Output

  • Bandwidth: DC to <300–1000 Hz (dependent on range and optical head)

  • Output voltage: 0–2 V into open circuit

  • Output impedance: 600 Ω typical

  • Maximum input voltage: ± 10 V Physical & Environmental

  • Dimensions: 75 mm H × 32 mm W × 335 mm D (2.8" × 1.3" × 13.2")

  • Net weight: 0.7 kg (1.5 lbs)

  • Operating temperature: 0 °C to +55 °C (subject to host mainframe limits)

  • Storage/shipment temperature: +40 °C to +70 °C


Key Features



  • Fabry-Perot laser design provides inherent insensitivity to back reflections

  • PC-type optical interface with precision connectors

  • Fine-resolution attenuation control in 0.1 dB increments

  • Selectable modulation frequencies for flexible test configurations

  • Rapid stability improvement - long-term performance stabilizes within one minute of operation


Compatibility & Integration Compatible with Agilent/Keysight 8153A, 8163A, and 8166 series Lightwave Multimeters. Optical connectors and adapters are supplied or available separately.

Agilent / Keysight 81554SM — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 81554SM. Calibration covers output power at specified wavelengths, wavelength accuracy, 15-minute output stability, and modulation frequency accuracy 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 81554SM faults: laser diode end-of-life (output below spec), fiber output connector damage, output instability. Common repairs include laser diode replacement when output falls below spec, fiber output connector repair, and thermal management service.

Agilent / Keysight 81554SM price

This Agilent / Keysight 81554SM is listed at $889. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Agilent / Keysight 81554SM calibration cost

NIST-traceable calibration for the Agilent / Keysight 81554SM 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 output power at specified wavelengths, wavelength accuracy, 15-minute output stability, and modulation frequency accuracy where applicable. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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