Laser-wave modules

[cruch]

A small laser review of Beijing Laserwave Optoelectronics Technology CO.,Ltd
I was contacted by brigde (Brigde has before worked at CNI ) at laser-wave on 21 September. He is also a member here in Photonlexicon.
He asked me if I would be willing to test 2 of their lasers free of charge. No need of paying shipping to me or back. As a laser lover I agreed to test his modules. He sent off his lasers at 25 September fom China. I received the lasers at 2 October. 8 days later. Since I dont was home when it arrived at my door, I got a note that the parcel have arrived. I had to go down to local postoffice to get it.

Parcel was well packed. There was no sign of damage to the parcel. Inside the parcel was 2 blue boxes. I figured out it was one laser in each box.
Here is a picture of one of the boxes


One box had a 300mW 532nm DPSS green laser ( model: LW-GL-II )
and the other one a100mW 473nm DPSS blue laser ( model: LW-BL-IV )

Inside the box was styrofoam around the laserhead on top. Below that an new layer of styrofoam
around the laser controll PCB board and the A/C to D/C power supply.


I unpacked everything and inspected the contents. Everythin looked allright. Yeah.
Pretty looking modules.

The laserheads had an yellow sticker placed over the laser output aperature. I remowed it.
Here is some pictures of the laserheads.





TEC fan
I must say the heads was heavy. I was impressed of the modules so far.


The baseplate is 130mm long 72mm wide and 12mm thick. Nice and solid baseplate.


Lasers side by side:
Blue 100mW and green 300mW


Nice modules.


A/C to D/C power supply



This laser power source is composed by switching power supply and control section.
in which switching power supply is the 85-265V wide scope input, 5V output

The powercable had an US connector, so I had to remove it and replace it with an EU connector.
My fault, didn request this. Still, no big deal.


Laser driver PCB OEM style:

No enclosed in any box, since this is the OEM style (You can get the LAB style box upon request)
Laser Driver PCB with a big heatsink and fans. Heatsink is 90mm long 64mm wide and 40mm high.
.On top you see the laser driver pcb.



The laserhead connects to the driver board via a 12pins connector.


There is also a connection socket to power the laser driver PCB from the A/C to D/C power supply
Here is the laserhead connected to the PCB.



Here is an side view of the laser driver


Top view of the laser driver PCB. It is very compact.



Back view of the heatsink. Here you can see 2 fans. They are 45mm*45mm.
They provide good cooling to the 3 chips on the heatsink and fans keep cooled.
And it is almost silent!! Big plus



View of TTL (left) and Analogue (right) connections You see small dip switches under to the right of the connections.
Named P2 (left, TTL Modulation Button) and P1 (right, Analog Modulation Button) Here you choose what type of pattern output you want

The function introduction
This laser is able to realize three kinds of pattern output, which are continual working, TTL modulation and Analog modulation.
The users may choose any working way by themselves.

A. CW mode
Put the Analog Modulation Button P1 which is on the control panel to the inter-modulation condition,
simultaneously put the TTL modulation button P2 to positive modulation state.

B. TTL Modulation
When with TTL modulation, establish positive and negative modulation according to your different need,
also put the analog modulation to hanging condition, Analog button should be put in the inter-modulation condition.

C. Analog Modulation
When with Analog modulation, please put the button to outside modulation state, the TTL modulation
is at the hanging condition, TTL to be at the positive modulating state.
When chooses 0-5V voltage input, laser power source 0-max electric current output.



TTL/Analogue cable. The cable is too short and too thin. Cable is around 15cm long
Maby include thicker cable and that is 70cm or more.


Analogue cable connected to the laser driver board. Here is it connected to the blue laser driver PCB.

So far the modules looks awsome and well made.

I have running them for 48hours. I re-checked the power output power every hour (timeconsuming and almost no sleeep hehe) Look for the attatchment test1.rar for the results(it is in .xls) After the 48hours test, I run the lasers for another 48 hours and measure the power(12 hours without measure then measure the output for 12 hours) Total 96hours of power masuring. You will be suppriced of the power readings I had an CNI 200mW greeen laser that I also did the same test. The temperatures on the head and drivers was cool and it stayed like this all time. The laserdriver was barely warm when you touch it under the test. The fans provide good cooling on the laserdriver and the fans are very silent. Beam quality appeared to be nice, with a round TEM00 beam diameter of just under 2 mm at the output aperature of the head of the laser-wave blue and CNI. The laser-wave green appared to be 3mm. Blanking performance is good on all alsers. I think the laser-wave laserheads are robust buildt (looks like cni) Laser-driver is small and compact, with a big heatsink. Allround I think this lasers will do great in RGB and single setups.
I got an offer to buy theese lasers for a discount after the test. Offcourse I said yes! Couldnt refuse that good offer and the lasers do perform great.
I think you would not be dissepointed if you order from laser-wave

Great service form laser-wave!!

[contact23]

Hello,

It looks as beautiful as CNI Laser!
Is the price better than CNI?

[guido]

Sind die selben wie bei CNI +/- ein wenig, auch gleich in Euro.
Wer wagt den Erstversuch ??

In Gedenken an LasEver die auch neu und billig waren grüsst..

Guido

[contact23]

Hallo

werde wegen preisliste anfragen, aber wenn die nicht günstiger sind als cni, dann werde ich nicht testen, denn warum was unbekanntes kaufen, wenn das bekannte ganz gut funktioniert.

interessant finde ich, dass die grün erst ab 200mW auf der hompage haben...

[afrob]

Der Lüfter im Laserkopf bläst bitte welche Luft wohin?

Üblicherweise wird die Wärme ja über eine Massive Grundplatte abgeleitet. Lüfter nach der Optik finde ich nicht so toll.

Grüsse,
afrob

[contact23]

Hallo,

Ach ja, der hat einen Lüfter (der mit den 3 schrauben *g*) eingebaut.
So wie ich das sehe bläst der luft durch die grundblatte und tritt dann vorne unter der optik aus. Und in meinem Fall würde er dann das Dichro anblasen - gefällt mir überhaupt nicht.
Viel von uns versuchen die Laserköpfe und optiken "Luftdicht" zu verbauen und dann sowas
Ich verstehe nicht, warum so viele Hersteller diese Minilüfter in fast jedes Gerät verbauen.

Grüße Matthias

[guido]

Hallo,
...So wie ich das sehe bläst der luft durch die grundblatte und tritt dann vorne unter der optik aus. Und in meinem Fall würde er dann das Dichro anblasen - gefällt mir überhaupt nicht.
Viel von uns versuchen die Laserköpfe und optiken "Luftdicht" zu verbauen und dann sowas
Ich verstehe nicht, warum so viele Hersteller diese Minilüfter in fast jedes Gerät verbauen....Grüße Matthias

Blödsinn...Sowas würde nicht einmal Chinesen einfallen.
Der Optische Teil ist komplett dicht. Hinten im Kopf ist ein Trägerblock mit Rippen eingeschoben der Peltier und Diode trägt. In den meisten Fällen sogar den kompletten Laser bis auf die Fokus-Linse.
So machen es auch Dreamlaser und die neuen CNI LowCost Kisten.
Er bläst von hinten auf die Rippen, der Kopf ist im hinteren Teil seitlich offen ( Schlitze )

[contact23]

Ok, verstehe! Die seitlichen Schlitze sieht man am Fotos leider nicht, aber kann mir nicht vorstellen, was der minimale luftdurchzug bringt/bringen soll

[contact23]

Preisliste habe ich ganz schnell bekommen, aber zum testen recht teuer, da lt. Preisliste der kleinste Grüne ein 300er ist
Naja, mal schauen, was die Tests in Norwegen ergeben...

[starburst]

Beachtlich das der 300 mW grün durchschnittlich 433 mW liefert über 72 Stunden. Auch komisch das der CNI nach 8 Stunden nur 184 mW liefert...

Das Blankingverhalten der Treiber würd mich interessieren. Weil es gibt ja auch andere gute Laser, nur die Treiber kannst dann meistens vergessen.

Beste Grüße

[allison]

exciting to see the test results though it past a so long time !