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How to drive laser diode?

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weeyndha

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how to drive laser diode

Hi all,

Does laser diode drive continuosly or pulsed? Any links to the schematic?

Regards
 

It depends on application.
There is quite a lot IC dedicated to this task. If you decide to make your own driver, you shoud consider problems with the power control because LD is highly sensetive to tempreture changes. ( when you push high current trough LD junction temperature is risen, voltage drop across LD fall and is very easy to burn LD) look fo example here :
**broken link removed**

**broken link removed**
 

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