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SPECTRA OF GREEN LASERS


This web page will be for nothing but spectra of lasers.
Ocean Optics USB2000 Spectrometer donated by P.L.
As of 10-10-07, I've been using a PC2000-ISA Spectrometer from Ocean Optics that I received several years ago, but that I didn't have a home for until now.
As of 03-08-08, I once again have the USB2000 spectrometer, enabling color spectra again.
As of 09-19-09, I no longer have the PC2000-ISA; it was sold to prevent an eviction.





LASERS (or "LAZERS" if you prefer):

Spectrographic analysis
Spectrographic analysis of the Extrema Green Keychain Laser Pointer.
I checked for IR, as shown below.


Spectrographic analysis
Same as above...{alarm sounds} {female computer voice} INPUT OVERLOAD!!!*
Let's try this again...same as above, but deliberately overloaded to check for the pump diode's 808nm laser line.

Actually, I did not need to overload the instrument at all, because no green
laser radiation was produced when this spectrum was taken.
As you can see, no IR filtering is evident.


Laser spectrographic plot
Spectrographic analysis of the Novophone Green Laser Module.


Laser spectrographic plot
Spectrographic analysis of the Novophone Green Laser Module, but spectrometer's response narrowed to a range of 800nm to 820nm to check for the 808nm NIR laser pump line. As you can see, this laser is extremely well-filtered to block this.


Spectrographic analysis
Spectrographic analysis of the Green DPSS Laser Line Generator.


Spectrographic analysis
Spectrographic analysis of the Laser Star (Kaleidoscopic Green Laser Pen); showing proof that I really did "overload" the instrument.


Spectrographic analysis
Spectrographic analysis of the Laser Star (Kaleidoscopic Green Laser Pen); spectrometer "overloaded".


Spectrographic analysis
Spectrographic analysis of the Laser Star (Kaleidoscopic Green Laser Pen).


Spectrographic analysis
Spectrographic analysis of the Ebay 532nm Green Laser.
Note that there is no 808nm line from the pump diode; this tells me the unit is well-filtered.


Spectrographic analysis
Spectrographic analysis of the 5mW 532nm Green Beam Laser Module Pen.
Note the small NIR line from the pump diode.
Note too that I said "SMALL" here; this tells me that the IR filtering is adequate at worst.


Spectrographic analysis
Spectrographic analysis of the green DPSS laser in the Laser Stars.


Spectrographic analysis
Spectrographic analysis of the True Green Laser Pen.
Note that there is no laser line at 808nm from the pump diode; this tells me that IR filtering is very good.


Spectrographic analysis
Spectrographic analysis of the Cupreous 50mW CR2 Green Laser Module.
Notice the 808nm NIR line from the pump diode is also *BARELY* visible here.
This tells me that the IR filtering is good, but it's not ***PERFECT***.


Spectrographic analysis
Spectrographic analysis of Extrema Keychain Green Laser Pointer.


Spectrographic analysis
Spectrographic analysis of Extrema Keychain Green Laser Pointer.
Same as above...{alarm sounds} {female computer voice} INPUT OVERLOAD!!!*
Let's try this again...same as above, but deliberately overloaded to check for the pump diode's 808nm laser line.

Actually, I did not need to overload the instrument at all, because no green
laser radiation was produced when this spectrum was taken.


Spectrographic analysis
Spectrographic analysis of a GreenBeam 100 Laser Module, deliberately overloaded to show that there is no 808nm line from the pump laser diode.


Spectrographic analysis
Spectrographic analysis of a GreenBeam 100 Laser Module.


Spectrographic analysis
Spectrographic analysis of a Wicked Lasers ''THE CORE'' Green Laser Pointer.
Spectrometer deliberately overloaded to check for the 808nm laser line from the pump diode.


Spectrographic analysis
Spectrographic analysis of a Wicked Lasers ''THE CORE'' Green Laser Pointer.


Spectrographic analysis
Spectrographic analysis of the Stealth >100mW Green Laser Module.


Spectrographic analysis
Spectrographic analysis of the Stealth >100mW Green Laser Module, with the
spectrometer irradiated to well above maximum to show that there is no 808nm laser line.


Spectrographic analysis
Spectrographic analysis of the 8mW Green Laser Pen.


Spectrographic analysis
Spectrographic analysis of the 240mW Green Laser Pen.


Spectrographic analysis
Spectrographic analysis of the Optotronics 532nm Green Laser Module, showing the weak 808nm laser line from the pump diode.



Spectrographic analysis
Spectrographic analysis of the Optotronics 532nm Green Laser Module, with the spectrometer's response narrowed to a range of 529nm to 535nm.
The spectral line halfwidth appears to be ~1.7nm.


Spectrographic analysis
Spectrographic analysis of the 50mW Green Lasers from New Zealand.
Note the 808nm laser line from the pump diode.


Spectrographic analysis
Spectrographic analysis of the 10mW Green Lasers from New Zealand.
There is 808nm emission, but it occurs off-axis from the green beam.


Spectrographic analysis
Spectrographic analysis of the 10mW Green Lasers from New Zealand.
Taken at an angle to show the 808nm emission from the pump diode.


Spectrographic analysis
Spectrographic analysis of the green DPSS laser in a LuckyDuck 5mW Green Laser Pointer.


Spectrographic analysis
Spectrographic analysis of the green DPSS laser in a SCE 50mW Green Laser.


Spectrographic analysis
Spectrographic analysis of the green DPSS laser in the Megalaser 15mW Green Laser.


Spectrographic analysis
The green DPSS laser in the Green Weapons Aimer Laser.


Spectrographic analysis
The green DPSS laser in the GL-1-GSP Green Laser Pointer.


. Spectrographic analysis
The green DPSS laser in the Bright Night Laser Light.


Spectrographic analysis
Spectrographic analysis of a GL-1 Green Laser Pointer.


Spectrographic analysis
Spectrographic analysis of a Optotronics RPL-260 Green Laser.


Spectrographic analysis
Spectrographic analysis of a Ebay Green Laser Module (2).


Spectrographic analysis
Spectrographic analysis of a PGL IIIA Green Laser Module.


Spectrographic analysis
Spectrographic analysis of a Wicked Phoenix 80mW Green Laser.


Spectrographic analysis
Spectrographic analysis of a pulsed green DPSS laser; circa. 1999.


Spectrographic analysis
Spectrographic analysis of the green DPSS laser in a 50mW CR2 Green Laser Module.
Note the prominent 808nm laser line from the pump diode.


Spectrographic analysis
Spectrographic analysis of a failing green helium-neon (HeNe) (543.5nm) laser.
Lines on either side of the 543.5nm laser line are non-laser emission lines of helium and neon passed by the OC.


Spectrographic analysis
Spectrographic analysis of the 5-In-1 Green Laser Module.



Laser spectrographic plot
Spectrographic analysis of a green DPSS laser.
















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