Nova Lasers Nova Series

[DoughDTD]

I was wondering if anyone knew what "near TEM00" means for the Nova Series Nova Laser. I'm looking into getting a powerful laser soon, and I'm looking between Optotronics RPL, Nova's Nova Series, or a LaserGlow Hercules. The RPL and Herc are both TEM00, and I know that means its a perfect beam, but why is it that the Nova is just "near TEM00", and what would that look like?

Sorry if this has been addressed before, I tried searching but it couldnt find it.

Thanks,

-Dough

 

[DoughDTD]

bump

anyone?

 

[spd2last]

near TEM00 means that it might not have a perfectly round dot, but rather it would be a little bit distorted. it definitely won't be something as bad as getting 2 separate dots from a few feet away, but it just might no be perfectly round

 

[Rhith]

Well they say that to cover themselves if you get one that's slightly off. All lasers will probably have a NEAR TEM00 since nothing is truly perfect.

 

[DoughDTD]

i really wish someone had one of these so we could get a nice review, cause i'm really considering this as my next laser

 

[marianne]

personally, for that sorta money i'd get an RPL...

 

[bootleg2go]

near TEM00 means that it might not have a perfectly round dot, but rather it would be a little bit distorted. it definitely won't be something as bad as getting 2 separate dots from a few feet away, but it just might no be perfectly round

Hi Spd2last,
Actually "near TEM00" does NOT mean that it might not have a perfectly round dot.
A TEM00 laser with a slightly tilted output lens will be somewhat elliptical, but it will still be TEM00.

Either a laser is TEM00 or it isn't, if it isn't TEM00 then it's another TEM mode.
Near TEM00 is something I'll look into, but to me it sounds like an "oxymoron" spec like "near digital"....either something is digital or it isn't.

Perhaps it means that at times it is TEM00 and at other times it's another mode?? I don't know for sure, I think saying "near TEM00" leaves the spec open to however the manufacturer wants to interpret it.

Jack

 

[steve001]

[quote author=Spd2Last link=1193070203/0#2 date=1193174032]near TEM00 means that it might not have a perfectly round dot, but rather it would be a little bit distorted. it definitely won't be something as bad as getting 2 separate dots from a few feet away, but it just might no be perfectly round

Hi Spd2last,
Actually "near TEM00" does NOT mean that it might not have a perfectly round dot.
A TEM00 laser with a slightly tilted output lens will be somewhat elliptical, but it will still be TEM00.

Either a laser is TEM00 or it isn't, if it isn't TEM00 then it's another TEM mode.
Near TEM00 is something I'll look into, but to me it sounds like an "oxymoron" spec like "near digital"....either something is digital or it isn't.

Perhaps it means that at times it is TEM00 and at other times it's another mode?? I don't know for sure, I think saying "near TEM00" leaves the spec open to however the manufacturer wants to interpret it.

Jack[/quote]

will be somewhat elliptical

In my conversation with them that's precisely what they mean. I recall there is a TEM00 designation that is very near TEM00, my memory is fuzzy as to where I read about that.
I did some looking around using near tem00 as the keyword many lasers have that designation. A near TEM00 would not have a smooth gaussian profile,