Green Laser Pointers
Green laser pointers are popular in classrooms, science demonstrations, and astronomy events because they are the most visible to the human eye. Whether you're teaching optics, leading students through a course, or pointing out constellations during a star party, green lasers provide remarkable clarity and brightness.
We provide Class 2 (<1 mW) and Class 3R (<5 mW) green laser pointers that have been fitted with IR leakage filters, tested for total power output, and certified for safe, consistent output. Don’t put your students at risk with untested laser pointers. Choose one of our options below for peace of mind in your next lesson.
How Do Green Laser Pointers Work?
Green laser pointers use a process called frequency doubling to produce their distinctive 532 nm light. Here’s how it works:
- An infrared laser diode first emits light at 808 nm.
- This beam passes through a neodymium-doped crystal (Nd:YVO₄), converting it to 1064 nm infrared light.
- A second crystal (KTP) then doubles the frequency, converting it into visible green light at 532 nm.
Because this process generates additional infrared light, high-quality green lasers include infrared-blocking filters and specialized coatings to ensure only visible green light exits the device. This is crucial because we can’t see IR light - so an excess of energy in the infrared spectrum could blind us before we even realize it’s hitting our eyes.
Why Choose a Certified Green Laser Pointer?
Green lasers aren't just brighter—they're also more complex. Unlike red or blue lasers, green models require multiple conversion stages, which can produce hazardous invisible IR radiation if not properly filtered. That’s also why green lasers are more expensive than red…usually.
Many low-cost green laser pens skip the critical infrared filter to reduce cost, putting users at risk of unseen IR photons.
That’s why each batch of our green laser pointers includes an IR filter and is verified for safe levels of total power output. With us, you get dependable performance without the hidden dangers.
Which power level of laser pointer should I buy?
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Class 2 (<1 mW)
Class 2 laser pointers are recommended for small classroom activities with students below Grade 9. We call these our "Super Safe" Classroom laser pointers, and our "Super Safe" safe for both kids and pets for optics education.
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Class 3R (<5 mW)
Class 3R laser pointers are best for classroom demonstrations by teachers and for use by advanced students who can handle them responsibly. These are the brightest class deemed safe for consumer use by the FDA. Our "look away" eye reflex prevents damage.
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