1 / 2

Lasers: Red Diode vs. Green IR pumped diode

Lasers: Red Diode vs. Green IR pumped diode. Laser diodes are the active element in solid state lasers Light producing region the size of a bacterium, 10,000 times smaller than LED Mirrors and the diode’s optical resonant cavity reflect and amplify the output light

Download Presentation

Lasers: Red Diode vs. Green IR pumped diode

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Lasers: Red Diode vs. Green IR pumped diode • Laser diodes are the active element in solid state lasers • Light producing region the size of a bacterium, 10,000 times smaller than LED • Mirrors and the diode’s optical resonant cavity reflect and amplify the output light • Collimating lens makes divergent laser beam parallel • Green laser pointers have a much sharper spectral line • Consequence of Diode Pumped Solid State Frequency Doubled (DPSSFD) laser technology httpsafeco2.home.att.netlaser.htm

  2. DPSSFD laser technology • Common alternative since green laser diodes not feasible • 800-900 nm (ours 889) laser diode pumps Nd:YAGcrystal to produce 1064 nm laser • 1064 nm freq. doubled in KTP crystal to produce 532 nm green laser • KTP multiplies frequency by 2, 3, etc. • 359 nm peak is the tripled frequency • Filters reduce all but 532 nm laser • Nd:YAG produces narrow output. httprepairfaq.ece.drexel.edusamlsrptr1.gif 532 Doubled YAG 359 Tripled YAG 889 Pump Laser httpwww.kellerstudio.derepairfaqsaml54-101.gif 1064 YAG

More Related