100mW 473nm DHOM laser

[Elektrotechniker]

So I bought this laser like 2 months ago. Modulation is TTL. I have done some runtimes which result in a total of 2 hours I believe, just to see how stable it is and check the peak power.. The laser seems to be very stable at above 115 mW according to my diy lpm. The seller took a random pic of the laser doing 128 mW , so I assume the average would be ~120mW. Either way, the power is guaranteed to be >100 mW even at warmup. I measured a peak of 126 mW. The TEM mode is something like TEM21 and when the laser came, it was TEM20.. Still the dot looks ok plus it's normal for DPSS lasers to swift TEM modes.. This laser is great for lasershows. The beam is similar the color of the sky. Lite blue, not like deep as in the pictures. I love this color Sorry for no pictures of the power readings.. If you are not convinced I'll get some for you. I need to sell this to raise funds for my future laser projector. Price is $350 + shipping,but willing to knock off some $$ depending on the shipping cost to your country. Just let me know if you are interested and I can get you a shipping quote.








Thanks for looking.

[Diachi]

Is there any way to convert this to analogue modulation?

Cheers,

Adam

[Elektrotechniker]

Pretty sure there is. I've seen people mentioning that they did it. There was never need for me to try it.

Is there any way to convert this to analogue modulation?

Cheers,

Adam

[Diachi]

Okay, go ahead and try and sell this then. I'm waiting for my oscilliscope to sell so that I have some laser funds. I'll also try and figure out if this can be converted to analogue. I'll take it if that is the case.

[Elektrotechniker]

Hey! I'm sure it would not be hard to convert it from TTL if you know what you're doing. I could put it aside for you if you really want it.

Okay, go ahead and try and sell this then. I'm waiting for my oscilliscope to sell so that I have some laser funds. I'll also try and figure out if this can be converted to analogue. I'll take it if that is the case.

o analogue. I'll take it if that is the case.[/QUOTE]

[Diachi]

Nah, just keep it up. If I get money on time and figure it out on time I'll take it.

[hakzaw1]

Hey! I'm sure it would not be hard to convert it to TTL if you know what you're doing. I could put it aside for you if you really want it.

I think you meant to say 'convert it *from* TTL'.... good price tho, even for TTL.

[Elektrotechniker]

I think you meant to say 'convert it *from* TTL'.... good price tho, even for TTL.

Indeed I meant from and not to TTL TY!

[absolom7691]

Converting from TTL would be very simple. Just use a flexmod. I did this on a TTL greenie of mine. I used the diode drive from the laser's power supply for the power input on the flexmod. Worked like a charm. NOTE: before this is done, you will need to measure the current going to the laser's pump diode and then pre-calibrate the flexmod, using the laser's power supply before wiring up the pump diode. It would really suck to burn the pump diode from accidentally overdriving it! Other than that, I have done this and it works great! I have this exact same laser listed here. I am going to be making this mod to it as soon as my flexmod arrives. I want to mix the 473 with my 445 for a more rounded blue. I'll post pics after I get it set up.

[Elektrotechniker]

Thanks for your input and the info provided

Converting from TTL would be very simple. Just use a flexmod. I did this on a TTL greenie of mine. I used the diode drive from the laser's power supply for the power input on the flexmod. Worked like a charm. NOTE: before this is done, you will need to measure the current going to the laser's pump diode and then pre-calibrate the flexmod, using the laser's power supply before wiring up the pump diode. It would really suck to burn the pump diode from accidentally overdriving it! Other than that, I have done this and it works great! I have this exact same laser listed here. I am going to be making this mod to it as soon as my flexmod arrives. I want to mix the 473 with my 445 for a more rounded blue. I'll post pics after I get it set up.