Announcement: New 532nm modules from KVANT soon!

[pelosh]

Hi all,

KVANT is finally at the stage of intensive testing.

Second half of January 2010 will bring us top-quality 532nm modules at 500mW, 1W and 1.5W versions priced higher than Chinese production because we are not Chinese production .

These modules will nicely complete our newest 640 and 445 range.
**Please note: FOR SERIOUS-QUALITY-BUILDERS ONLY!**

I am so glad that we finally managed to get something decent and not astronomically expensive in those power levels.

Please see further announcements in NEWS section of our website:
www.synchrovision.co.uk

Cheers

[tocket]

What exactly is so good about these lasers and how is it done?

The way I see it the obvious improvements that can be made over chinese DPSS lasers are: Stability, linearity and modulation.

One of the few ways to address these problems, which are inherent to the DPSS technology, is by integrating an AOM. Is this what kvant is doing?

[pelosh]

Stability, linearity and modulation? DEFINITELY!

And the way they do that? ...I haven't got clue as I am not technician and developer, but proper datasheets with all necessary info is going to be released just before modules.

..also..we can't tell you everything, can we?!

[-bart-]

Most manufacturers have a long way to go properly specifying these.
Don't we just hate those specsheets that says something like:
Stability: yes
Linearity: analog
Modulation: 15 kHz

[ElektroFreak]

What exactly is so good about these lasers and how is it done?

The way I see it the obvious improvements that can be made over chinese DPSS lasers are: Stability, linearity and modulation.

One of the few ways to address these problems, which are inherent to the DPSS technology, is by integrating an AOM. Is this what kvant is doing?

Excellent question, but short of supplying an AOM or PCAOM within the laser iteslf, I don't see how these DPSS shortcomings could be eliminated. Improved, perhaps, but not eliminated. AOMs are only good for TTL-type modulation as far as I know, so a PCAOM would be required for analog modulation in a whitelight system. Even the very finest DPSS systems in the world from Coherent and Spectra-Physics cannot be directly modulated and maintain 100% power/mode stability, and I can assure you that no Kvant offering will be superior to a Verdi or Millennia in terms of design.. Coherent recommends the use of an AOM when modulating their DPSS systems is necessary.

Looking forward to hearing more about this..

[gottaluvlasers]

Hey Pelosh-

Just out of curiosity, Why do you insist on bunching "Chinese production" all into one category?

Do me a favor, look inside of that Superior Laser of yours, Ill bet you a whole hell of a lot to a little that 70% of the electronics and possibly other components in there are "Made in China."

Nobody doubts that KVANT makes a good product. But when i advertise my products I don't attempt to make other competitors inferior. Is this a marketing tactic? Is it working?

Oddly enough, i have sold probably very close to 750 Lasers from LaserWave (based in China) and of those 750....at a high estimate, i have had 20-25 defective. Of those 20-25, 10-15 were probably Blue lasers which you, swisslas, coherent, CNI and EVERY SINGLE manufacturer on this planet suffer the same problems with.

Of course China, just like Germany and Switzerland and Netherlands, and USA and every country on our little rock, has good manufacturers and poor manufacturers.

You seem like a good guy. I highly respect the KVANT brand. But you seem to all too many times insult *my* efforts selling one of those "Chinese brands" which, in my opinion performs the exact same (and would GLADLY put one of mine next to yours any day of the week and twice on sunday) as your god gifted lasers.

Think about it.

-Marc

[pelosh]

Hey Marc-

I wasn't...didn't... .. there is surely a reason why you have sold so many lasers..

I am surrounded with Chinese stuff at my home (as we all are) and everywhere else. With this rate my children (which I haven't got yet) are going to be their slaves. 80% of all that stuff is pretty rubish and the only reason I bought it is because all other "sensibly priced" quality options disappeared - with jobs as well. People are loosing their sense for save, look forward, pay for quality and than use it for many years, because it lasts. You know what I mean. Instead of buying one good car in 20 years, let's by 5 "it will do the job" cars - it's cheap anyway.
And that's why I stand where I stand. And that's why I will always fight mainly for Europian manufacturing (if it's good enough of course) or at least design and development.

None of this means that what you sell is rubbish...I never set that (or at least here and now)! All I say here is that for people who are willing to pay bit more we offer bit more.
In past years we tested many (again sensibly priced - Coherent is good, but £$£) 532nm green lasers from many manufacturers and it simply wasn't good enough. If it was, we wouldn't bother to get ours.

In last 12 months we had 2 faulty 445's out of 300. There were couple more problems with 640, but that's sorted now.

And long-term test to compare your modules with ours could be quite interesting..switch it on and leave it till the end..hmm..let me think about it...you are quite far from me so we would have to find someone objective with free electricity and good measuring equipment.

ENOUGH OF POLITICS..if more problems occures, PM me. I am open to discussion. In any case, no offence was meant against your or any other businesses!

[White-Light]

Martin,

This is a little academic as I can't afford Kvant, but as its a question I've been meaning to ask for a while and I'm sure others have also, are Kvant going to produce lasers with both 445 & 473 incorporated given the positive feedback from Insanity's build and the fact that as many people don't like 445 as do?

Also, are there any plans for a 457nm module, maybe as an alternative again to this?

[pelosh]

Because many of those who like or dislike 445 can't actually afford KVANT's modules and because our main aim are complete projectors I can't see much point in doing that although one never knows, what's going to be tomorrow.

Martin,

This is a little academic as I can't afford Kvant, but as its a question I've been meaning to ask for a while and I'm sure others have also, are Kvant going to produce lasers with both 445 & 473 incorporated given the positive feedback from Insanity's build and the fact that as many people don't like 445 as do?

Also, are there any plans for a 457nm module, maybe as an alternative again to this?

[tocket]

If you are seriously considering an external long term stability test I might have the right facility for that. I have just ordered a very nice power meter (Ophir Nova II with 3A-P-FS head) for use in my research group at KTH.

We have free electricity and a good reason to keep this laser up and running - to measure on our photochemical systems. That means we'll take readings on a regular basis (as it's required for our measurements) and you'll get professional and trustworthy results (if it passes peer-review in the scientific community it should surely be good enough for photonlexicon?).

Just a thought...