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.
LASERS (or "LAZERS" if you prefer to be incorrect):
Spectrographic analysis of the 490nm line from the 980nm Laser Pen.
Spectrographic analysis of the 490nm line from the 980nm Laser Pen; spectrometer's response narrowed to a band between 475nm and 505nm to pinpoint emission, which consists of two lines at 489.060nm and 491.50nm.
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/47/980.txt
Spectrographic analysis of the LZIR808-200 808nm Infrared Invisible Burning Portable Laser; newest (01-13-13) spectrometer software settings used. Spectrometer's response narrowed to a band between 800nm and 810nm to pinpoint wavelength, which is 806.040nm.
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/43/ir-200.txt
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser; newest (01-13-13) spectrometer software settings used. Spectrometer's response narrowed to a band between 805nm and 810nm to pinpoint wavelength, which is 806.040nm.
The raw spectrometer data (tab-delimited that can be loaded into Excel) is at http://ledmuseum.candlepower.us/43/ir-500.txt
Spectrographic analysis of the 300mW 780nm Diode Laser Module; newest (03-25-12) spectrometer software settings used.
Spectrographic analysis of the 300mW 780nm Diode Laser Module; newest (03-25-12) spectrometer software settings used. Spectrometer's response narrowed to a band between 780nm and 790nm to pinpoint wavelength, which is nm.
As you can see, this laser's wavelenth is 785.777nm.
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser just above lasing threshold.
Spectrometer's response narrowed to a band between 806nm and 812nm.
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser well below lasing threshold.
Spectrometer's response restricted to a band between 760nm and 840nm.
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser after intentional ignorance of the duty cycle recommendation to check for wavelength drift -- which was indeed found -- but it drifted shorter this time.
Spectrometer's response narrowed to a band between 800nm and 820nm.
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser after intentional ignorance of the duty cycle recommendation; spectrometer's response narrowed to a band between 806nm and 812nm.
This now shows that the wavelength has shortened to 808.480nm and the spectral line halfwidth is ~2.960nm (whereas these values were 810.30nm and the spectral line halfwidth was ~3.60nm when last measured).
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser after inadvertant ignorance of the duty cycle recommendation to check for wavelength drift -- which was indeed found.
Spectrometer's response narrowed to a band between 800nm and 820nm.
This shows that the wavelength has lengthened to 810.30nm and the spectral line halfwidth is ~3.60nm (whereas these values were 807.95nm and ~3.80nm when new).
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser.
Wavelength appears to be ~808nm, which is ***WELL*** within specification for the type of laser diode used in this laser.
Spectrographic analysis of the LZGN-808-500 808nm 500mW Focusable Infrared Laser; but spectrometer's response narrowed to a band between 800nm and 820nm.
This shows that the wavelength is in fact 807.95nm and the spectral line halfwidth is ~3.80nm.
Spectrographic analysis of the LZIR808-200 808nm Infrared Invisible Burning Laser Module after three minutes of continuous operation.
This shows that the wavelength is now 807.91nm and the spectral line halfwidth is ~2.30nm.
Spectrographic analysis of the LZIR808-200 808nm Infrared Invisible Burning Laser Module.
Wavelength appears to be ~808nm, which is ***WELL*** within specification for the type of laser diode used in this laser.
Spectrographic analysis of the LZIR808-200 808nm Infrared Invisible Burning Laser Module; but spectrometer's response narrowed to a band between 800nm and 820nm.
This shows that the wavelength is in fact 806.01nm and the spectral line halfwidth is ~3.30nm.
Spectrographic analysis of the Roithner Lasertechnik # TEL-2E20-007 VCSEL.
Spectrographic analysis of the 50W 808nm Laser Diode Module; newer spectrometer software & settings used.
Below lasing threshold; I do not yet have a power supply that can deliver sufficient current to bring it to threshold.
Spectrographic analysis of the 300mW 780nm Diode Laser Module.
Spectrographic analysis of the 300mW 780nm Diode Laser Module; spectrometer's response narrowed to a range of 770nm to 790nm.
As you can see, this laser's peak output is at 785.1nm.
Spectrographic analysis of a 50W 808nm Diode Laser Module,
operating ***BELOW*** lasing threshold.
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