Bristol 871 Series Laser Wavelength Meter
The 871 Series Laser Wavelength Meter uses a proven Fizeau etalon-based design to measure the wavelength of both pulsed and CW lasers that operate from 375 nm to 2.5 μm.
- Model
- 871
- Calibration
- Available on request
- Price
- $36,750
- Status
- In stock
- RFQ ref
- 871
This unit
The Bristol 871 Series Laser Wavelength Meter measures wavelength for both pulsed and continuous-wave lasers with exceptional accuracy across the ultraviolet through mid-infrared spectrum. Built on a Fizeau etalon design, it delivers traceable wavelength determination from 375 nm to 2.5 μm, making it the instrument of choice for metrology labs, system integrators, and production environments demanding high-fidelity spectral data.
Technical Specifications
Wavelength Coverage: 375 nm to 2.5 μm. Specific configurations available: VIS (375–1100 nm) and NIR (650–1700 nm). Accuracy:- Model 871A: ±0.2 ppm (±0.0001 nm at 500 nm; ±60 MHz at 1000 nm), 99.7% confidence level, traceable to accepted physical standards
- Model 871B: ±0.75 ppm (±0.001 nm at 1500 nm; ±225 MHz at 1000 nm) Repeatability:
- Model 871A: ±0.0075 ppm (±2.25 MHz at 1000 nm)
- Model 871B: ±0.0125 ppm (±3.75 MHz at 1000 nm)
- Specified as standard deviation over one minute at thermal equilibrium; 10-minute standard deviation approximately doubles 1-minute values Resolution: Approximately two times repeatability. Measurement Performance: 1 kHz sustained rate with 1 ms time resolution. Every pulse measured for lasers at ≤1 kHz repetition rate (VIS: ≤500 Hz); higher rates integrate pulses within the measurement window. Minimum Input: 20 nJ per pulse (20 μW at 1 kHz). Calibration: Automatic using integrated wavelength standards - stabilized HeNe laser (VIS) or laser diode locked to acetylene absorption per NIST Special Publication 260-133 (NIR). Optical Input: Pre-aligned fiber-optic coupling; no manual pattern optimization required.
Key Features
- Measurement rate to 1 kHz with internal buffer storing up to one million measurements
- USB or Ethernet connectivity for instrument control and data streaming
- RS-422 serial interface for high-rate data acquisition
- Display software and LabVIEW programming support for flexible measurement workflows
Typical Applications Wavelength verification of fiber lasers, solid-state systems, and semiconductor sources in R&D and manufacturing metrology.
Compatibility & Integration Standard PC connectivity via USB or Ethernet; RS-422 serial port supports real-time data streaming at maximum measurement rate.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 60 MHz to 225 MHz (at 1000 nm reference) | Wavelength Range: 375 nm to 2.5 μm (VIS: 375–1100 nm |
| NIR | 650–1700 nm) |
871 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the 871. Calibration covers absolute wavelength accuracy at multiple reference points across the full measurement range, frequency accuracy, wavenumber accuracy, and multi-wavelength channel spacing measurement accuracy. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common 871 faults: interferometer alignment drift, reference etalon or HeNe laser end-of-life, InGaAs detector sensitivity loss, fiber input connector damage. Fizeau interferometer-based instruments (Agilent 86120B/86122A/C) most commonly develop interferometer alignment drift and InGaAs detector degradation over time. Burleigh WA-series scanning Fabry-Perot instruments most commonly fail due to reference HeNe laser end-of-life. Both types are fully repairable with post-repair wavelength accuracy verification.
871 price
This 871 is listed at $36,750. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
871 calibration cost
NIST-traceable calibration for the 871 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 absolute wavelength accuracy at multiple reference points across the full measurement range, frequency accuracy, wavenumber accuracy, and multi-wavelength channel spacing measurement accuracy. Turnaround is 1 to 3 business days after receipt. See full calibration details →
