Old 07-02-2012, 11:16 PM #17
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Default Re: 175mW 638nm Ehgemus with Mitsubishi Single Mode Diode

I made some beam shots with 3 red lasers. The 638nm has clearly more visible beam than the 650nm laser despite the lower output. The 638nm single mode diode has more pronounce wings around the dot than the LPC815 diode and both dots are round. The 638nm multi mode diode has the famous ugly bar dot.

The setup : 350mW 638 multimode, 175mW 638nm single mode, and 240mW 650nm LPC-815.


The 638nm beams are clearly visible to my eyes. The 650nm beam is hard to see, almost invisible to my eyes but the camera detect the beam just fine.


In real life the color of 638nm laser is more intense. Much pleasing color.


Last shot shining all the three laser above the table.


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638nm 175mW Ehgemus, 1W Rook
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685nm 33mW Fujitsu FLD6A2TK C6
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Old 07-02-2012, 11:19 PM #18
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Default Re: 175mW 638nm Ehgemus with Mitsubishi Single Mode Diode

Nice little review. Thanks
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Old 07-02-2012, 11:34 PM #19
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Default Re: 175mW 638nm Ehgemus with Mitsubishi Single Mode Diode

Nice photos, Blord. Red lasers may not be as "exotic" as some other wavelengths but the red wavelengths are special.

The AMC7135 is giving 350mA, correct?
The spec. sheet for the diode recommends 200mA max.
Are most people over-driving these diodes? This is the only review including this diode that I have seen, I think.

The brightest 635-638nm laser I have built was ~40mW. Even then it was almost as bright as 300mW of 655nm (LPC-815).

This thread makes me miss my collection.
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Old 07-02-2012, 11:49 PM #20
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Default Re: 175mW 638nm Ehgemus with Mitsubishi Single Mode Diode

Quote:
Originally Posted by Ehgemus View Post
Nice little review. Thanks
Thanks, your host is AMAZING !!

Here is some discussion about the 110mW diode, http://laserpointerforums.com/f46/mi...0-a-73647.html
RHD murdered the diode at 410mA. That's why I set the current at 350mA.
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I have copper 501B and Dominator lasers for sale !

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Old 02-08-2013, 04:41 PM #21
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Default Re: 175mW 638nm Ehgemus with Mitsubishi Single Mode Diode

Very Nice Beam and Dot Pictures Blord,thank's for sharing with us.
I always like to see your beautifull pictures.
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Old 02-08-2013, 06:10 PM #22
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Default Re: 175mW 638nm Ehgemus with Mitsubishi Single Mode Diode

Thanks !
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532nm 821mW Skylaser PL532, 133mW Jetlasers Ti-B
589nm 100mW PGL-III-C-589
635nm 70mW Sanyo SenTorch
638nm 175mW Ehgemus, 1W Rook
660nm 1216mW Skylaser PL660, 263mW LPC826 C6
685nm 33mW Fujitsu FLD6A2TK C6
780nm 150mW Dilda
808nm 640mW C6

I have copper 501B and Dominator lasers for sale !
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Old 02-08-2013, 06:13 PM #23
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Default Re: 175mW 638nm Ehgemus with Mitsubishi Single Mode Diode

I should get dadīs 1D for such shots
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405nm >> Wickedlasers SONAR by lazeerer peak@968mW
445nm >> Kryton Smooth by lazeerer peak@2075mW
453nm >> Lipstick by rhd peak@158mW
473nm >> Optotronics RPL-B peak@112mW
515nm >> Skylasers HL peak@41mW
532nm >> Novalasers Alpha HP peak@284mW
589nm >> CNI PGL-III-A peak@89mW
594nm >> Laserglow Rigel peak@4mW
635nm >> MXDL by DTR peak@38mW
642nm >> Saillaser peak@23mW
660nm >> CR2 by lazeerer peak@524mW
685nm >> MXDL by lazereer peak@42mW

Above lasers measured with an Ophir nospin LPM


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