Find a "simple" laser diode

[Alex M.]

Hello,
I am searching for a "simple" laser diode, which we can use for our
physics laboratory.
We want to measure temperature-dependent current - voltage - output-
power characteristics,
which works without problems for commercial diodes from an electronics
store.
However, we also want to investigate the spectrum of the diodes, which
should ideally
show a single dominating mode at operating current (but most diodes
show a mutimode
spectrum).
Where can I buy laser diodes which meet our requirements?

Thank you in advance,
Alexander Müller

[AFR]

Dear M�ller,

try one of our cheap LDs, even watercooled around 284 K it will work!
Cheers!

http://www.roithner-laser.com/All_Datasheets/Pricelists/roithner-pricelist-c-090529.pdf

see u
A.R.

"Alex M." <alex....@googlemail.com> schrieb im Newsbeitrag
news:7a90ff96-e428-4bcf...@s9g2000yqd.googlegroups.com...

Thank you in advance,
Alexander M�ller

[Christoph Bollig]

Hi Alexander,

Maybe the following small diode laser for holography will work for
you:

http://www.holokits.com/hologram_diode_laser.htm

It's got a decent coherence length, which means the spectrum should be
fairly narrow band. In addition, it has a small adjustable collimation
lens.

Regards,

Christoph

> Alexander M�ller

[R.X.]

On Jul 2, 1:00 pm, "Alex M." <alex.phy...@googlemail.com> wrote:
..

> Where can I buy laser diodes which meet our requirements?
>
> Thank you in advance,
> Alexander Müller

Try for example the Mitsubishi ML101J27, which can be gotten for less
than $20 here:
http://holographyforum.org/phpBB2/viewtopic.php?f=11&t=6748
Thorlabs charges much more for it.
According to my measurements, it can do approx 50mW in single
longitudinal mode, see here:
http://pagesperso-orange.fr/redlum.xohp/laser/modeanalysis.html#ML101J27
-W