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Stabilized Helium-Neon (HeNe) Laser - Frequency and Intensity |
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- Stabilized HeNe laser operating in either stable-frequency or stable-intensity mode
- Long term (8 hr) frequency drift 3 MHz maximum
- Typical intensity stability better than 0.2% absolute (1 hour)
- Superior output power (> 1.5 mW) from single line, linearly polarized output
- Long coherence length
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| Applications |
- Interferometry
- Holography
- Laser Doppler anemometry
- Spectroscopy
- Inspection systems
- Medical imaging
- Flow cytometry
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Product DescriptionProduct DetailSpecifications3-D Model
Related Products
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The Model R-32734 Frequency/Intensity Stabilized Helium-Neon (HeNe) Laser uses a highly refined thermal compensation technique to provide an excellent balance of high output power and stability, low temperature sensitivity, and reliability. An extremely versatile research and instrumentation tool, it can toggle instantly via front panel control between intensity and frequency stable modes. In intensity stabilized mode, the HeNe laser will operate as an output power reference, with the stability of < ±0.2% (1 hour), while in the frequency stabilized mode, frequency stability as low as < ±3 MHz can be obtained over an 8 hour period. Utilizing enhanced designs and superior optical components, the laser delivers unsurpassed operational stability and lifetimes. The mirror quality and performances are optimized to result in the highest quality HeNe lasers available in the market. This high-performance laser is supported by a one-year warranty. Also other helium neon laser products available at Newport: see Helium-Neon (HeNe) Lasers - Green 543 nm, see Helium-Neon (HeNe) Lasers - Red 633 nm, and see Helium-Neon (HeNe) Lasers - Infrared. |
Design Note |
A Proprietary design and manufacturing technology deliver a highly stabilized and quiet signal, immunity to ambient temperature drift and 1.5 mW of clean, stable and reliable output power. Designed for many applications where the temperature environment cannot be rigorously controlled, the Model R-32734 frequency stability specifications include both a specified frequency range per time interval and per temperature interval. With superb temperature sensitivity, Newport’s Intensity-Frequency Stabilized Helium Neon (He-Ne) laser achieves reliable stability over the widest range of conditions. |
Choose Operation Mode Depending on Your Application |
Frequency stability for long path difference interferometry, metrology, holography, spectroscopy and frequency marking. The short-term frequency stability of the Model R-32734 makes it an excellent choice for interferometers with unequal arms. With the coherence length on the order of 100 m, the helium neon (He-Ne) laser is ideal for large depth-of-field applications in holography and metrology. Frequency stability further enhances coherence length for critical measurements or exposures.
Intensity stability for surface texture characterization, velocimetry, scattering and polarization. The simple, one-button intensity lock ensures highly stable (less than 0.1% over short intervals) output power, ideal for applications where optical signal strength varies with changes in the test subject. Examples include surface scattering, profilometry, and single axis velocimetry. |
Mounts (Sold separately) |
Laser Mounts provide convenient mounting of cylindrical lasers to positioners, rods, and tables. Please see Cylindrical Laser Mounts. |
ULM-TILT and ULM
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Cylindrical Laser Mount assembly with Rod and Rod Clamp
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Additional Helium Neion (HeNe) laser Choices |
Newport also offers unstabilized Helium-Neon lasers with other wavelengths: green 543 nm, IR 1.15 µm, 1.52 µm, and 3.39 µm. Please see Helium-Neon (HeNe) Lasers - Red 633 nm and see Helium-Neon (HeNe) Lasers - Infrared. |
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