Old 11-07-2007, 10:37 PM #1
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Default why is blue expensive

just wonderring green and blue lasers are both dpss, then why is blue so much more expensive than green


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Old 11-07-2007, 11:40 PM #2
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Default Re: why is blue expensive

the crystals are less efficient requiring larger pump diodes as well as the crystals being made of more costly materials - plus it's a fairly new technology so it's still quite expensive
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Old 11-08-2007, 12:22 AM #3
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Default Re: why is blue expensive

I guess there are 2 reasons.. its fundamentally more difficult to achieve, and the market is much smaller. Blue results from a minor Nd:YAG line (946) being doubled, while green is fromt the primary 1064 nm line. Also, doubling is less efficient, making it all that more difficult to build a blue DPSS.
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Old 11-08-2007, 12:23 AM #4
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Default Re: why is blue expensive

well thanks guys/gals, that helps me alot ive always wondered
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