Are there any ways to pass through a laser sensor undetected?

Answer

As the question asked about "passing through" a laser sensor, the answer speaks to the breaking of the laser beam. And that's not something that you can do. Breaking the beam will trigger the sensor. If an investigator has an idea about the laser itself, it may be possible to "substitute" for the beam being used in the sensor, but most laser sensors will pick up any attempts to dump another beam in over the top of the extant one. Forget about mirrors and such. The "smart" laser sensors use a beam too small to "split" with mirrors. Rerouting with fiber optics is equally futile. What you've seen on those TV shows and in movies is pie in the sky - you can't do that.

About all you can do is detect the beam and avoid it. But anyone using a laser may also be using infrared IR sensors. (I would.) These sensors are completely passive; they emit nothing at all and cannot be "seen" in any way. If something is worth protecting with a laser, an IR detector would be an easy "add on" to that system. In fact, given a choice, the IR would be a better first choice.

Answer

The laser, which stands for Light Amplification by Stimulated Emission of Radiation, are very cohorent and precise. The lasers are very particulary specific and the chance of passing the lasers without undetected is not possible unless the laser is not working properly. The lasers are used widely nowadays.

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You could have a very steady hand and start practicing with mirrors/

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The only way: find a way to be invisible. Other than that, you have to do like in the movies and step over and around them.

Answer

align and add a fiber optic loop, or provide another souce of LASER that has same wavelength and polarizartion

Laser can be modulated, so is not easy to make another source of laser light.

First answer by ID0000000000. Last edit by Quirkyquantummechanic. Contributor trust: 837 [recommend contributor]. Question popularity: 183 [recommend question]