But they are never pushed to their limits in CD and DVD driver, are they?
You said it yourself, PHR is rated at 40mW max power.
We push the 3x harder!
All I am saying is that with NORMALY and COMMON drivers used around these parts, turn on has a degree of effect on laser diode.
BTW, no need to tell me that LDs are not filament bulbs... as unbelivable as it may seem, I figured it out by myself
Also, you can see DVD and CD drives' diodes dying out on you in 2 years or less...
Pointers and general lasers that use diodes also last that long with same diodes overdriven by severeal hundred percent.
I mean, LOC diode pushed to 0.5 A?
It sure was not meant to be driven at that current.
Also, the Pulse mode you are talking about is generally achieved by drivers with good output filtering and capacitance, smoothing out the start as much as possible.
Right?
Average Nd:xxx and KTP conversion efficiency is about 25%, which does not mean there cannot be higher (and lower
) efficiencies achieved, also, 170mW peak power is not uncommon, neither is 190mW peak in a pen laser, however max sustained power is rarely above 150-160 mW (heat, battery sagging etc.).
But I assure you that you will not see any 200mW sustained average power pens sold (up-to-spec) any time soon...