If you don't wanabe a laserdon'twanabe you could try to repair it, it is not easy, it is not robust, but can be done.
!) Use wire wool to clean up the back of the diode and the pin stubs.
2) If you want to put this in a host where the negative return is through the flashlight body, locate the negative stub.
3) using flux or flux cored solder create a blob of solder that bridges to the case of the LD.
4) Using a piece of stiff copper, single strand, wire bent in a loop (my picture shows a short loop, you could make a long one with the insulation still on). Tin both ends and attach one end to the solder blob...Negative pin sorted...
5) If using a short loop clip a bulldog/crocodile clip to the loop to act as a heat soak, then bend the wire until it is centred on the positive pin stub and carefully try to solder the other end of the wire to it, last time I did it it took me about 6 or 7 attempts, the laser still works over a year later.
[edit]once you are happy with the soldering, snip the loop to get the + & - connections you require to go to the drive circuit. [/edit]
You will, not be able to solder this straight onto the Rkcstr driver as it will come apart with the heat when trying to connect it up. Cut the loop and use a clamp again to soak away heat, solder the leads to the driver board.
Hope that helps.
Regards rog8811
[edit]my drawings show LD out of Aixiz module, being in a module makes it easier to hold
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