Author Topic: TTL frequency  (Read 360 times)

f3nix

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TTL frequency
« on: July 23, 2017, 12:04:44 PM »
Hi.
Is it possible to make the TTL frequency higher?

My laser module needs about 1000khz.

Cheers,
Mateusz

Macpod

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Re: TTL frequency
« Reply #1 on: July 23, 2017, 09:13:06 PM »
The LaserShark has two analog outputs and one TTL output. The outputs are updated once every time a sample is updated (which corresponds to the PPS rating you have choosen).

I have not heard of a laser requiring a particular frequency. Usually what you see is the maximum ttl frequency that they can be operated with. What laser are you working with?

f3nix

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Re: TTL frequency
« Reply #2 on: July 27, 2017, 04:32:03 PM »
Hi,
I'm using this laser module:
https://www.civillaser.com/index.php?main_page=product_info&cPath=32_34&products_id=130

The problem is that with lasershark_stdin_circlemaker the laser is very dim. It is visilbe from 5cm only.
I have checked with all three outputs.

With lasershark_jack and using playilda from openlase everything works as expected (full power and distance).

I do not know what is going on here.

I'm doing something wrong for sure since I've just started  :-[

Thanks for your patience.

Cheers,
Mateusz


Macpod

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Re: TTL frequency
« Reply #3 on: July 31, 2017, 10:44:58 PM »
If it works with lasershark_jack and playilda it sounds like the laser is hooked up correctly.

with lasershark_stdin_circlemaker do you see the circle (just a very dim one?). Have you modified the program to change the laser brightness? What do the text lines output to lasershark_stdin look like?