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hello everyone, can someone help me and tell me is the red laser diode in the laser pointer a multimode or a single mode? the wavelength is around 632nm and i am actually trying to figure out whether to use a multimode or a single mode.

hi i followed the diagram for the driver on the website www.rog8811.com/laserdiver.htm and the circuit is working and i measure the mv across the 1 ohm resistor and it measures 26mv which is equal to 26ma ( the current the laser diode will see). it laso measure 2.9 v across the diodes in the...

guys i need some help and i really hope someone can help me. i need to buy a red laser diode but i live in egypt and i have a project to submit in a week and a half. i was wodnering if any one knows about the fastest way to ship some laser diodes to egypt in less than a week ? or any one has...

ok i setup the driver for my red laser diode. i don't want to burn my laser diode so i connected the driver circuit to the dummy load circuit as explained. the laser diode works on 2.6 volt and 35 ma.i measured at the diodes as explained and the only value i get is 0.87 v , it doesn't change...

hi, i have a red laser diode and i want to build a laser with a max of 5mw output but i want to control the output using a voltage/current supply. so basically what i am looking for is a simple reliable circuit that makes the laser diode works and i can control the output by changing the...