D
Deleted member 10578
Guest
What a sham of specmanship.
WTF is this with "NEAR TEM00"?
Either it's TEM00 or it isn't, I guess they put it in there to sound good and allow lots of mode hopping...oops I mean NEAR TEM00.
Then I see that the pulsed/switched unit has a duty cycle, but the CW one doesn't....
That doesn't make sense, the pulsed laser is already being shut off (pulsed) for a good percentage of the time (they don't give the duty cycle of the 2Khz switching period).
I think these pulsed lasers are going to be a big seller with these kinds of sellers as
1. They are cheaper to make as most diodes can be over driven for very short periods.
2. They don't require lots of cooling as they are shut off a good percentage of the time.
3. The people buying them don't have power meters capable of measuring the true energy output of pulsed lasers, most meters will record the peak power of the laser or maybe the average output as if it were a CW laser, most won't report the energy (joules) of pulsed lasers unless it is one of the more expensive meters.
Jack
WTF is this with "NEAR TEM00"?
Either it's TEM00 or it isn't, I guess they put it in there to sound good and allow lots of mode hopping...oops I mean NEAR TEM00.
Then I see that the pulsed/switched unit has a duty cycle, but the CW one doesn't....
That doesn't make sense, the pulsed laser is already being shut off (pulsed) for a good percentage of the time (they don't give the duty cycle of the 2Khz switching period).
I think these pulsed lasers are going to be a big seller with these kinds of sellers as
1. They are cheaper to make as most diodes can be over driven for very short periods.
2. They don't require lots of cooling as they are shut off a good percentage of the time.
3. The people buying them don't have power meters capable of measuring the true energy output of pulsed lasers, most meters will record the peak power of the laser or maybe the average output as if it were a CW laser, most won't report the energy (joules) of pulsed lasers unless it is one of the more expensive meters.
Jack