piferal
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- Apr 5, 2011
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Hey guys,
Today is the turn to an laser diode very different to the already ones photographed earlier in another of my threads.
The main differences with the Mitsubishi red LD photographed in my other thread are:
This one have much better beam profile.
The shape of the upper substrate is very particular (is not rectangular or square as in other diodes).
No leaks on the front, left, and right side as the diodes photographed before (this one only lasing through a very small window in the front and in the back).
The other main differences are at the level of measures, but I can not compare them because the other red laser diodes I have not taken the dimensions yet.
For those who want to see the differences with the other red laser diodes under a microscope here's the link.
And also for those who want, here is the link to the 405nm violet laser diode, also under a microscope.
The oficial data of this LD are unknown, it was extracted from an DVD-RW.
The limited data I have are as follow:
Brand and model of the DVD: LG GSA-4120B
Wavelength: 650nm
Package: Ø 5.6mm, Closed can.
Case negative.
------------------------------------------------------------------------------------------------------
The first 2 photos is for you can compare the profile of the beam of the Mitsubishi LD and this one.
The next 4 photos overview of the LD.
In the next 3 photos you can see the dimensions of different parts of the LD.
In the next photos you can see the LD, from various angles and with various magnifications.
Also you can appreciate that this LD does not have side leakage as the other LD's.
In the 3 photos below you will appreciate something already seen in the 405nm LD,
(sure someone already saw this) you know what I mean?
In the next 6 photos, LD view from various angles but with more magnification.
In the last photos, you can easily see the curious shape of the upper substrate,
and the little window where the laser beam exits.
End
Today is the turn to an laser diode very different to the already ones photographed earlier in another of my threads.
The main differences with the Mitsubishi red LD photographed in my other thread are:
This one have much better beam profile.
The shape of the upper substrate is very particular (is not rectangular or square as in other diodes).
No leaks on the front, left, and right side as the diodes photographed before (this one only lasing through a very small window in the front and in the back).
The other main differences are at the level of measures, but I can not compare them because the other red laser diodes I have not taken the dimensions yet.
For those who want to see the differences with the other red laser diodes under a microscope here's the link.
And also for those who want, here is the link to the 405nm violet laser diode, also under a microscope.
The oficial data of this LD are unknown, it was extracted from an DVD-RW.
The limited data I have are as follow:
Brand and model of the DVD: LG GSA-4120B
Wavelength: 650nm
Package: Ø 5.6mm, Closed can.
Case negative.
------------------------------------------------------------------------------------------------------
The first 2 photos is for you can compare the profile of the beam of the Mitsubishi LD and this one.
The next 4 photos overview of the LD.
In the next 3 photos you can see the dimensions of different parts of the LD.
In the next photos you can see the LD, from various angles and with various magnifications.
Also you can appreciate that this LD does not have side leakage as the other LD's.
In the 3 photos below you will appreciate something already seen in the 405nm LD,
(sure someone already saw this) you know what I mean?
In the next 6 photos, LD view from various angles but with more magnification.
In the last photos, you can easily see the curious shape of the upper substrate,
and the little window where the laser beam exits.
End
Last edited:
Thanks to Piferal now we're much closer to the laser diodes !! haha
