Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Optics



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 02-23-2012, 03:36 PM #1
Junior Member
 
Join Date: Feb 2012
Posts: 2
Rep Power: 0
Chimo2 is on a distinguished road
Chimo2 Chimo2 is offline
Junior Member
 
Join Date: Feb 2012
Posts: 2
Rep Power: 0
Chimo2 is on a distinguished road
Default Pin hole for clean up a focused laser ?

HI

have search on forum and not find clear answer

for a industrial application i need to use a focused laser
but my problem was
that i got the expected laser spot + image of the internal of the diode

so i need to remove this and keep only the Gaussian laser beam
i try whit pin hole mounted right on the diode but it hard to adjust
specially whit very small pinhole

i power diode well under threshold point and under microscope i
move pin hole until i see the spot but ,i not certain that laser
will exit same spot that in led mode ?
and this was not really eyes safe to ....

any other subjection or optic trick ?

my setup was

Aixiz laser module + glass lens
focus beam to spot of 0.004" (4 mil) @ distance of 2"
image of laser internal = ~0.080 to 0.100"
i clearly see on target the diode die and bonding wire ...

Best regard


Chimo2 is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 02-23-2012, 03:40 PM #2
Wolfman29's Avatar
Class 3B Laser
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Wolfman29 Wolfman29 is offline
Class 3B Laser
Wolfman29's Avatar
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Default Re: Pin hole for clean up a focused laser ?

You get an image of the LD projected? That's not normal....
Wolfman29 is offline   Reply With Quote
Old 02-23-2012, 04:08 PM #3
Junior Member
 
Join Date: Feb 2012
Posts: 2
Rep Power: 0
Chimo2 is on a distinguished road
Chimo2 Chimo2 is offline
Junior Member
 
Join Date: Feb 2012
Posts: 2
Rep Power: 0
Chimo2 is on a distinguished road
Default Re: Pin hole for clean up a focused laser ?

Hi

LD internal was filled whit light so lens simply focus and project it on my target ?
if i was not focused i not have that issue

my 2 module have do the same thing

may also take problem back way it you look right away on the module lens
you will see the spot and the internal

then beam was much smaller that the 1.6mm hole of the LD

Best regard
Chimo2 is offline   Reply With Quote
Old 02-27-2012, 02:53 PM #4
Bluefan's Avatar
Class 3R Laser
 
Join Date: Aug 2009
Location: The Netherlands
Posts: 1,482
Rep Power: 62
Bluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond repute
Bluefan Bluefan is offline
Class 3R Laser
Bluefan's Avatar
 
Join Date: Aug 2009
Location: The Netherlands
Posts: 1,482
Rep Power: 62
Bluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond reputeBluefan has a reputation beyond repute
Default Re: Pin hole for clean up a focused laser ?

If you want to clear up a beam profile of a laser diode then after collimation you can focus on the pinhole and collimate the beam after that, which then can be focussed:
| laser diode |<|)==(|>|<|)===(|>
__________________
Highlights of my laser collection:
Big Sky Er:YAG - HP 8168D 1480-1570nm tunable laser source - Spectra Physics 3800 modelocked Nd:YAG - lots of IR diodes and bars - LPC-815 200mW 650nm - DL 6353TL 635nm 5mW - HP5501A stabilized HeNe - 2x Melles Griot 05-STP-910 stabilized HeNe - Spectra Physics 3500 Dye laser - REO 30536 543nm 2mW - Coherent DPY315-100 532nm 100mW SLM DPSS - Lexel 85 - 3x B&W tek 10mW 473nm - 445nm 3W Bluefan Sabre module - SF-AW210 150mW 405nm - DPSS inc 355nm 100mW Q-switched

Power meters:
Laser precision RkP-575 w/ RK-5710 - Ophir 10A-V2-SH - Ophir OEM 20C-A - HP 8152A w/ 2x 81521B - Coherent 212 - Anritsu ML93 w/ MA98A - 2x laser precision AM-400 - Leader LPM-8000


Last edited by Bluefan; 02-27-2012 at 02:55 PM.
Bluefan is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 10:28 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC