Observe the 915nm Infrared Invisible Laser

-

 We are often exposed to infrared light, such as near-infrared wavelengths such as 780nm and 808nm, and the naked eye can see a faint red spot. As we all know, lasers like 915nm are invisible wavelength. So how do we detect it? Let's check it now.

In the video below, we use a small infrared detection card to convert 915nm invisible light into visible light. The 915nm laser illuminates the observation card and displays a green visible spot.





Comments

Post a Comment

Popular posts from this blog

0.1 dollar get a 200mw green laser pointer -- what! is it true?

-
Image
Q: 0.1 dollar get a 200mw green laser pointer -- what! is it true? A: Yes, it's true. 7 kinds of $0.1 laser pointers Product Link: https://www.lucklaser.com/index.php?main_page=product_info&cPath=31&products_id=192 Q: How to buy? A: As long as your order is over $60, you can buy it with $0.1. Q: It's so cheap. Is the power of the laser pen high? A: 7 kinds of $0.1 laser pointers's power in not high.If you want to buy a high power laser pointer, you can consider Lucklaser's 3000mW blue laser pointer. 3000mW blue laser pointer -- 61%OFF Product Link: https://www.lucklaser.com/index.php?main_page=product_info&cPath=19&products_id=190 Q: Christmas is coming, what gift to friends? A: A high power laser pointer . Q: What can I do with laser pointer? A: Wow! The use of the laser pointer is great. It can be used as a laser pointer for classroom teaching, for outdoor adventure, indicating the remote target and send a distress signal,can be
Read more

C-Band EDFA 25dB Gain Pre-Amplifier

-
Image
Multi-wavelength Gain Flatness Erbium doped fiber amplifier  (GFF EDFA )  is a family of fiber amplifier products dedicated to optical fiber communication systems，it has multi wavelength and gain flattening， and high gain and low noise advantages, support PC software control, compact, easy to integrate, but also according to customer needs to provide desktop or rack type packaging.   C-Band EDFA Erbium-doped Fiber Amplifier  25dB Gain Pre-Amplifier
Read more

Advantages and Disadvantages of Fiber Lasers

-
Image
Fiber laser  advantages : (1) The advantages of miniaturization and intensification brought about by the low manufacturing cost of glass optical fiber, mature technology and the availability of optical fiber; (2) The glass fiber does not require strict phase matching of the incident pump light like a crystal, which is due to the non-uniform broadening caused by the splitting of the glass matrix Stark, resulting in a wide absorption band; (3) The glass material has a very low volume-to-area ratio, and the heat dissipation is fast and the loss is low, so the up-conversion efficiency is high and the laser threshold is low; (4) The output laser has many wavelengths: this is because the rare earth ion energy level is very rich and there are many kinds of rare earth ions; (5) Tunability: Since the rare earth ion energy level is wide and the fluorescence spectrum of the glass fiber is wide. (6) Since there is no optical lens in the cavity of the fiber laser, it has the ad
Read more