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Our stabilized PLASMA© He-Ne laser line incorporates several models with highly stabilised laser radiation for applications in interferometry, precision measuring systems, holographic and projection as well as biotech- and medical systems.

Within this series we are offering three different product lines
  • LGN-303 Series
  • LGN-212-1
  • LGN-220-Series

LGN-303 Series


Unique constructional features provide for constant optical parameter performance even under unfavourable mechanical and environmental conditions.

These single-frequency stabilized lasers are emitting either at one frequency or at two orthogonally polarized components with 640 MHz difference.

Due to the ability to operate in two regimes (modes) - spatial separation and alignment of orthogonally polarized radiation components - lasers of this series are successfully utilized in multichannel telecom systems.

Frequency stabilization is implemented by thermal control of the resonator length.

For laser replacement no additional adjustments or recalibration are required.

Extended cable lengths from 500 - 1500 mm are available on request for the models
LGN-303-1 and 303A-1.


Application examples:
  • Industrial control and measuring systems
  • Telecommunication applications
  • Interferometric systems
  • Research
  • Optical location

  • Specifications >>>

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LGN-212-1


This dual-frequency stabilized laser emits at orthogonally polarized components with a frequency difference of 1,5 - 2,2 MHz. The laser is implemented as a "monoblock" with the laser head and power supply within a single package. All mounting elements and mirrors are mounted inside a glass tube.

An integrated collimator facilitates adjustment capabilities for adaptation to the optical systems in which the laser is used. This way, utilisation of the laser radiation at long distances from the source is enabled. This laser type was originally concepted to be used in high resolution interferometers.
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LGN-220 Series

This single-frequency laser line with enhanced output power upto 100 mWatts features high stability of radiation and beam characteristics and is intended to be used in applications calling for superior performance.

A SuperInvar resonator and exchangable cavity mirrors provide for a thermally and mechanically stable design as well as variability. The special coated cavity mirrors are suppressing lasing action at the strong 3,4 µm line, thus maximising output power in the visible line spectrum.

LGN-220 standart
These systems are optimised for maximum output power at the 633 nm line with output powers of 70 mWatts in single mode.

LGN-220C
In the 50 mWatt class these systems provide single frequency operation at 633 nm.

Application examples:
  • Holography
  • Interferometry
  • Measuring instrumentation
  • Medical applications
  • Graphic- and imaging systems

  • Specifications >>>

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LGN-220 SF

This model is intended for utilisation in holography and applications calling for highly stable operation at four frequencies at the red 633 nm line, the orange line . at 612 nm, the orange-yellow line at 594nm and the green line at 543 nm. -------------- An incorporated Fabry-Perot-Etalon enshures several meters of coherence length and coherence in time at best output power and stability.

These He-Ne lasers are unique worldwide in their high output power and stability in beam parameters.

For holographers, in the need of a tunable Helium-Neon laser with several visible lines, there are currently no alternatives.


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