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Old 11-20-2011, 07:58 PM #1
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Default analog vs. digital modulation

what's the diff, and how does it affect value of a dpss laser?


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kryton groove gitd 445
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Osram pl520 in an sh-032 host
Skylaser HL532-300
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Rayfoss 650 150mW
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Old 11-20-2011, 08:02 PM #2
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Default Re: analog vs. digital modulation

im confused do you mean analog and ttl?

analog means that with a modulation input you can modulate the power of your laser for example 5v is full power and the lower you go the less powerful it is this is used in projectors for color mixing. but to be clear the 5v etc is just a modulation input thats not what the laser itself is powered by

ttl is just on or off
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Old 11-20-2011, 10:47 PM #3
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Default Re: analog vs. digital modulation

thanks so much, i understand now.
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i have fond memories of owning
10 hene tubes 2 argon ion units and lots of diode and dpss lasers in these wavelengths:
405,445,450,458,473,488,532,543,594,612,632,635,650,685,780
I'm rebuilding my collection:
Skyray 405 12x
kryton groove gitd 445
B&W Tek 473 lab laser
JDSU 2214-40 multiline argon ion
Osram pl520 in an sh-032 host
Skylaser HL532-300
543 HeNe
632 HeNe x3
Opnext 638 single mode in c6 host
Rayfoss 650 150mW
Laserbee II Deluxe lpm w/ Peregrine
Laissez les bons temps rouler!
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Old 11-20-2011, 10:55 PM #4
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Default Re: analog vs. digital modulation

Quote:
Originally Posted by cheech226 View Post
thanks so much, i understand now.
NP
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Old 11-21-2011, 11:17 PM #5
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Default Re: analog vs. digital modulation

TTL R-G & B can also give you teal- yellow and magenta.
six colors plus white if you have a good balance to start with...
Analog allows for full color- thousands of variations.
including white.

Cheap China projectors use TTL lasers and stepper motors. beams OK... animations and graphics not so much.

ya pays yer money and takes yer choice.
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