joniverson;
I am glad you liked the circuit and hope it works out for the best for you. In regards to using a resistor as a current limiter for such a circuit, you have an inaccurate cap that is a variable of the heat and other resistances in the circuit. This may be the resistance of the LD, the capacitor, or the batterys' internal resistance. All of which play a role in the current control. The capacitor is an excellent dissipater for voltage spikes, but current spikes are not something anything this simple can control. I cannot testify for how long a circuit of cap + resistor would hold up for a diode, and depending on the power source it may not be a constant at all.
I honestly urge everyone to control the current going through any laser diode.
GL;
DD:
I am glad you liked the circuit and hope it works out for the best for you. In regards to using a resistor as a current limiter for such a circuit, you have an inaccurate cap that is a variable of the heat and other resistances in the circuit. This may be the resistance of the LD, the capacitor, or the batterys' internal resistance. All of which play a role in the current control. The capacitor is an excellent dissipater for voltage spikes, but current spikes are not something anything this simple can control. I cannot testify for how long a circuit of cap + resistor would hold up for a diode, and depending on the power source it may not be a constant at all.
I honestly urge everyone to control the current going through any laser diode.
GL;
DD: