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1532nm 3mW Acetylene Calibration Source Laser Absolute Accuracy 2MHz
The Calibration Source is a frequency-stabilized narrow-linewidth calibration source (acetylene). As a laser frequency reference, the LFR-1532 employs an acetylene absorption spectroscopy system to achieve exceptionally precise frequency stability, making it ideal for calibrating our wavelength meters in the infrared wavelength range.
Product features:Acetylene (C₂H₂) molecular frequency stabilization; Narrow linewidth; Low power noise; Compact modular design; Intelligent control
Part Number:MP-LFR-1532-3-SA
Application area:Optical communication reference | Space laser ranging | Quantum optics | Spectroscopy research | Defense and security
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Output Wavelength Output Power Absoluted Accuracy
1532.83041nm±0.07pm up to 3mW(tunable) ±2MHz

Automatic Calibration
The wavelength meter can be automatically recalibrated at user-defined intervals, ranging from several weeks to the time between individual measurements. This automatic process requires no user intervention and takes less than one second before returning to measurement. When used with the PID option, laser runaway is prevented.
External Calibration Source
Idealphotonics offers various frequency-stabilized narrow-linewidth laser sources for different applications, with absolute accuracy down to ±0.5 MHz. They are ideal for fast and accurate calibration of our entire range of HighFinesse wavelength meters.
Integrated Calibration Source
Standard wavelength meters with absolute accuracy up to 60 MHz feature automatic calibration via an integrated calibration source. In this way, our wavelength meters can guarantee the highest measurement accuracy and stability.
Technical Specifications
Calibration Source ParametersLaser Head
Nominal Output Wavelength | 1532.83041 nm ± 0.07 pm |
Output Power | Up to 3mW(Adjustable) |
Beam Output | FC/APC,single-mode fiber |
Warm-up Time | < 1 min |
Absoluted Accuracy | ± 2 MHz |
Operating Temperature | + 15 C° to + 30 C° |
Storage Temperature | – 20 C° to + 50 C° |
Laser Head Dimenesions | 357 × 304 × 100 mm |
Thread at Beam Exit | FC/APC |
Length, Connection Cable (Laser/Power Supply) | 0.5 m |
Weight | 4.9 kg |
Laser Safety Class | 3R |
Altitude, Non-operating | 0 – 7000 m |
Operating Altitude | 0 – 3000 m |
Power
Input Voltage | 90 – 264 VAC, 47 – 63 Hz |
Line Plug Availability | Europe, USA/Japan, Australia |
Operating Temperature | + 15 C° to + 30 C° |
Storage Temperature | – 20 C° to + 70 C° |
Weight | 3.6 kg |
Dimensions | 314 × 199 × 139 mm |
Testing and Certification
EMC | EN 50081-1 3/93 EN 50082-2 2/96 |
Safety | EN 60950 9/94 |
CE Conformity | EU Guidelines 73/23/EWG and 89/336/EWG Haemonized EN Standard EN 61010-1, EN 60825-1、EN 55011 and 50082-1 |
Calibration Source Laser Series Products
Parameter | Wavelength | Absoluted Frequency Accuracy | Output Power |
Stabilized Laser Reference (Rubidium ) 1) | 780 nm | ± 0.5 MHz | up to 2 mW (adjustable ) 2) |
Laser Frequency Reference (Acetylene) | 1532 nm | ± 2 MHz | up to 3 mW (adjustable ) 2) |
Frequency Stabilized HeNe Laser | 633 nm | ± 25 MHz 3) | ≥ 1.0 (typ. 1.5) mW |
Frequency Stabilized HeNe Laser | 633 nm | ± 5 MHz 3) | ≥ 0.8 (typ. 1.0) mW |
Stabilized Laser Reference (Cesium ) | 852 nm | ± 2 MHz | up to 5 mW (adjustable ) 2) |
1.Other rubidium wavelengths available upon request.
2.Higher power available upon request.
3.After 40 minutes of operation.
Tests
The left graph shows a measurement of the LFR-1532 beat signal with a frequency comb over 14 hours.
The right graph shows the same LFR-1532 measured with the WS8 IR-I wavelength meter.

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