Agilent / Keysight 81940A 1520-1630nm Tunable Laser Source
Agilent / Keysight Tunable Laser Sources. Power Range (dBm): ≥+10 dBm to ≥+14.5 dBm, Wavelength Range: 1520 nm to 1630 nm.
- Model
- Agilent / Keysight 81940A
- Calibration
- Available on request
- Price
- $20,260
- Status
- In stock
- RFQ ref
- 81940A
This unit
The Keysight 81940A is a compact tunable laser source operating across 1520–1630 nm, delivering precise optical stimulus for component and system characterization. This module integrates a built-in wavemeter, coherence control, and SBS suppression to enable low-uncertainty measurements across the C and L bands with mode-hop-free tuning, high output power, and exceptional wavelength stability. Designed for modular integration with 8163A/B, 8164A/B, and 8166A/B mainframe systems, it excels in testing optical amplifiers, DWDM devices, and both active and passive optical components.
Technical Specifications
- Wavelength Range: 1520 nm to 1630 nm (110 nm total tuning range)
- Wavelength Resolution: 1 pm; 125 MHz at 1550 nm
- Mode-Hop-Free Tuning: Full wavelength range
- Sweep Speed: 50 nm/s maximum
- Absolute Wavelength Accuracy: ±20 pm (typical ±5 pm)
- Relative Wavelength Accuracy: ±10 pm (typical ±5 pm)
- Wavelength Repeatability: ±2.5 pm (typical ±1 pm)
- Wavelength Stability (24 h): ±2.5 pm
- Linewidth: >50 MHz (1570–1620 nm, coherence control off); 100 kHz effective (coherence control on)
- Output Power: ≥+14.5 dBm peak (typical); ≥+13 dBm (1570–1620 nm); ≥+10 dBm (full range)
- Power Linearity: ±0.1 dB
- Power Stability: ±0.01 dB over 1 hour (typical); ±0.03 dB over 24 hours
- Power Flatness vs. Wavelength: ±0.2 dB (typical ±0.1 dB) across 1570–1620 nm; ±0.3 dB (typical ±0.15 dB) full range
Key Features
- Built-in wavemeter for direct wavelength measurement and reduced calibration uncertainty
- Coherence control to suppress stimulated Brillouin scattering and cavity-induced interference
- Continuous sweep mode enabling repeatable, mode-hop-free operation across all bands
- High output power sufficient for direct amplifier stimulus without external boosters
Typical Applications Optical amplifier characterization, DWDM component testing, wavelength-dependent device response measurement, and multiband optical system validation.
Compatibility & Integration Pluggable module for Keysight 8163A/B, 8164A/B, and 8166A/B optical instrument mainframes.
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | ≥+10 dBm to ≥+14.5 dBm | Wavelength Range: 1520 nm to 1630 nm |
Agilent / Keysight 81940A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Agilent / Keysight 81940A. Calibration covers wavelength accuracy at 5 or more points across the full tuning range, mode-hop-free range, output power flatness, linewidth, and side-mode suppression ratio (SMSR). All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Agilent / Keysight 81940A faults: output power drift, mode hops, fiber pigtail connector damage, wavelength inaccuracy. Common faults include output power drift after extended use, mode hops at specific wavelengths, and fiber pigtail connector damage. Full alignment and piezo calibration typically restore performance to spec.
Agilent / Keysight 81940A price
This Agilent / Keysight 81940A is listed at $20,260. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Agilent / Keysight 81940A calibration cost
NIST-traceable calibration for the Agilent / Keysight 81940A 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 wavelength accuracy at 5 or more points across the full tuning range, mode-hop-free range, output power flatness, linewidth, and side-mode suppression ratio (SMSR). Turnaround is 1 to 3 business days after receipt. See full calibration details →
