108 reputation
11245
bio website 3.14.by
location Moscow, Russia
age 32
visits member for 4 years
seen yesterday

Software developer (in love with C++). Hardware geek (FPGA's, STM32, AVR, crazy stuff from discrete components), love LED indicators (7-segment, alphanumeric). Trying to understand ASIC design & manufacturing better at the moment. Also, trying to wrap my head around lens design, but that is not going to be that easy.

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Dec
7
answered diffraction grating
Dec
4
awarded  Popular Question
Nov
25
comment Spectrum of generic $\mathrm{CO_2}$ laser
I only have few ZnSe lenses. So for a rough spectrometer I still need suitable diffraction grating and detector. Regarding the specs - there are nothing else, Chinese manufacturers only care about raw output power, that's it. If it is only one line - that would already answer my question, but I am not sure it supposed to be 1 line without line selection.
Nov
23
comment Spectrum of generic $\mathrm{CO_2}$ laser
This is Chinese glass sealed 40W CO2 laser. Building spectrometer for 10um range might be quite challenging task )
Nov
23
revised Spectrum of generic $\mathrm{CO_2}$ laser
added 64 characters in body
Nov
22
comment Spectrum of generic $\mathrm{CO_2}$ laser
It's a sealed tube - if I put anything at the output I'll loose power. The question is "how broad" could it be? Is it 0.1um wide? 1um wide?
Nov
16
awarded  Tumbleweed
Nov
9
asked Spectrum of generic $\mathrm{CO_2}$ laser
Nov
1
awarded  Popular Question
Oct
23
accepted Why GPS is at LEO?
Oct
17
revised Low-cost 532nm DPSS laser modulation
added 74 characters in body
Oct
15
comment Low-cost 532nm DPSS laser modulation
@Eion As a side note, I recently realized that common EOM (Pockels Cells) have quite high switch energy due to high voltage and intrinsic capacitance. This makes it dissipate 10-450W of power on 10Mhz depending on aperture... They typically designed to switch fast, but only few 1000's of times per second.
Oct
15
revised Stimulated emission in Nd:silica glass, energy levels broadening and lasers
edited body
Oct
15
revised Stimulated emission in Nd:silica glass, energy levels broadening and lasers
added 478 characters in body
Oct
15
asked Stimulated emission in Nd:silica glass, energy levels broadening and lasers
Oct
10
comment Low-cost 532nm DPSS laser modulation
@CuriousOne "broadband", DC-10Mhz, random digital data.
Oct
10
asked Low-cost 532nm DPSS laser modulation
Oct
9
awarded  Popular Question
Oct
9
comment What challenges needed to be overcome to create (blue) LEDs?
@Gabe 515nm and 520nm
Oct
8
comment What challenges needed to be overcome to create (blue) LEDs?
@Ruslan A bit expensive (50-100$), but sold as usual laser diode, no problems. We've bought 26 GaN green lasers already.