An Overview of HeNe Lasers

Lasers come in different types and are used in various applications. However, HeNe lasers are efficient and have a unique performance. These lasers are the best in the market due to their IBS coating capabilities and accurate optical fabrication. They come in various types, and each type has its specifications.

Stabilized Lasers

These lasers have an intensity of 632.8nm, an output power of 1.5mW, and exceptional stability and are suitable for several applications in precision metrology, research, and interferometry. They also offer several advantages, including a long lifetime, an active frequency, and high stability. They are designed using ultra-low loss optics and have a frequency and intensity mode that makes it easy for users.


  • They have a stabilized wavelength of 633nm.
  • The power supply is 1.5mW.
  • They have a linear polarization of 500:1

Yellow Lasers

These lasers work with the help of low-loss optics, which are customized and in-house manufactured. They provide a yellow source laser used for alignment. Yellow lasers are polished and coated using a thin film through specialized techniques. This helps to reduce the scattering and absorption hence high reflectivity. Thus, they have high stability, a long lifetime, and are reliable.


There are two system part numbers of the yellow lasers. Both have a wavelength of 594nm and linear polarization of 500:1. However, their power and laser head vary.

Green Lasers

These lasers provide a power level ranging between 0.5mW to 2.0mW. They have options for either linear or random polarization. They also have a wavelength of 543nm, which is highly visible, especially when near the human eye’s photopic peak. This makes the wavelength suitable for alignment and several bio-photonic applications, and these systems are the best in the market due to their reliability. They are also highly stable and have a long operational lifetime.


Green lasers have seven system part numbers. They all have a wavelength of 543nm. However, their polarization can either be random or linear, and they have different power, laser heads, and power supply.

IR Lasers

Several IR laser light sources offer different wavelengths at 1153nm, 1523nm, and 3392nm. Their power ranges between 1.0 to 2.0mW and have a linear polarization of 500:1. OEM clients use them to address various needs, including cost, packaging, functionality, performance, and delivery schedule.


  • They have a wavelength of 3392nm, 1523nm, and 1153nm.
  • Have a linear polarization of 500:1
  • Power ranges between 1.0mW to 2.0mW

Red Lasers

These lasers have a power ranging between 0.5 to 30mW.  They have a reliable beam quality, natural wavelength stability of 633nm. This makes them fit for various applications, including particle counting, polarization experiments, metrology, food/agricultural sorting, DNA sequencing, and semiconductor inspection.


  • Have a wavelength of 633nm
  • Their polarization can either be orthogonal, linear, or random.
  • Power ranges from 0.5mW to 30.0mW

Applications of HeNe Lasers

These lasers are used in various applications, including consumer products, safety, security, sciences, defense and aerospace, medical, automotive, and industrial manufacturing. They ensure that services delivered in various industries and fields are successful.

Consumer Products

They are used in smart homes and consumer electronics. In smart homes, sensor technologies help in the detection of gas and smoke. This ensures protection and gives homeowners peace of mind. Intelligence sensors are used in smart home systems to monitor power lights ON and OFF, activation of burglar systems and security cameras, adjusting HVAC temperatures.

Photonic innovations help in the consumer electronic market. Sensor technologies are made into gaming systems to detect motion and recognize the gesture. They are also used in sporting electronics, including hunting-trail cameras, speed guns to track a ball’s speed, and golf laser rangefinders. Again, photonic emitters and sensors are suitable for providing bio-feedback in fitness devices such as physical wearables and personal mobile.


Lasers are widely used in physics, astronomy, and life sciences. They have detectors that are used in laboratory experiments to detect single protons. They can also detect them from galaxies at a far distance. These lasers are also used to measure the properties of matter and energy. These lasers, optics, and lamps are used for various applications in physics and material sciences such as photometry, luminometry, detector calibration, particle sizing, metrology, and material testing.

Illumination, detection, and optics are used for research in biology and enhancing the biotechnology market. These lasers are needed for lighting in any application in biology. They are switchable, customizable, have multi-wavelengths, are tunable, and have laser-LED hybrids. Ultra-sensitive modules detect low-light and enable the best market in determining photon counting in various parameters such as high linear dynamic range and photo detection efficiency (PDE). These parameters are also essential for specific applications, including fluorescence, microscopy, and luminescence.

Industrial Manufacturing

These lasers are used in industrial applications such as electronics, environmental monitoring, semiconductor equipment, and machine vision and inspection. They ensure that materials used in the manufacturing process aren’t contaminated throughout the process. Light-activation of materials nowadays is essential for several manufacturing processes, including printing and additive manufacturing.

Emitters and detectors are used in LiDAR and range finding, which are essential in life today. They are needed at construction sites in drones and surveying equipment and warn automobiles in lane departures. This ensures that no mistakes occur hence avoids any future disasters.

Safety and Security

Detection technologies such as high-performance sensors, pioneering digital pyroelectric IR detectors, and photodiode arrays are used in several applications, including X-ray security scanning, quantum cryptography, home security system cameras, smoke detection, and intrusion alarm systems. Without these lasers, safety could be reliable in all areas, and people could be living in fear. The use of sensors and detectors enables us to keep the world safer.

LED and Xenon lighting, high-voltage power, and surveillance camera optronics are used in harsh environments such as UV sterilization, transportation lighting, law enforcement optics and optronics, hazardous-area lighting, traffic monitoring, and warning beacons and strobes.

Lasers are used in various fields for different applications. Though they have different specifications, they are essential, and life could be challenging without them. They also ensure that people live in a safe world hence peace of mind. The above guide defines different Excelitas lasers types, their specifications, and applications in various fields.

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