Corning G-1000 module

[holokidd]

oh cool ! thanks Steve I currently have a pair of concave mirrors Sam gave me for red w/ROC @ 43MM ,and work great for most red diodes and hene , i made my first unit from an old Jodon external mirror HeNe cage. I am now re configuring it into much smaller package ........... its easy to swap out mirrors, and has a very fine focus adjustments.

I can pay you in only gold holograms, you see im just a poor holographer that cant seem to leave the basement !


Corning calls this laser a DFB laser "thru wet processing" it sounds so exciting!....... so it turns out theres a hologram in there dock

im sorry i dont know how to bring this document posted by Pascal if you go to the linked thread and look at post #17 explains quite alot of info Thanks Pascal !

http://www.photonlexicon.com/forums/...ghlight=showwx

[holokidd]

thanks for bringing that post here

[sugeek]

http://www.photonlexicon.com/forums/...chmentid=22566

Fixed the link

im trying to post this Document Pascal placed on another thread...........



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[mixedgas]

Are they 12.5 mm or 15 mm diameter mirrors on your Jodon? If its the usually Jodon 15 I can set you up REALLY GOOD.

Then you can do a contact print for me of a certain grating master I really like. (Legal one, made it by accident one day, not a copy of some one elses grating)
Makes exactly 4 orders and a primary beam, which looks KICKIN with a ion laser.

I used to have access to and maintained a etalon stabilized UV argon with J Lock, and a green argon that was iodine locked. I miss severe coherence.

Steve

[holokidd]

Hey thanks Steve, up till now iv only used the concave mirrors sam gave me, my jodon frame uses the 12.5mm dia. The diameter size dosent matter as i have an edge grinder here ,if i switch to a plano/plano configuration, can I use my dichro mirrors ? Im itching to get that Corning G-1000 in my hands, any day now, any day now.............

Yes i can replicate you Gratings no problem, DCG holograms w/200mw+ Coherent Sapphire 480 nm (yes its SLM)

[holokidd]

ok just a quick update on these fine lil lasers. After removing the G1000 from its fixture i hooked it up to a 5V 200ma power source and the heater to a 3VDC battery w/trimming resistor i adjusted the voltage slightly as i realised 3Vdc (full) was too much power. Low and behold the laser seemed to "lock in" when i trimmed some voltage. Now ive run the laser @ about 90mw for hours..... and it sure looks like its SLM ! hologram test tonight.thanks for all the info prorvided here .

[dsli_jon]

Care to share pin-outs?... Pretty-please, with a lumia-wheel on top?

cheers...
j

[chad]

This is what I came up with earlier. Use at own risk.

Pins from back left to right.
1: Gnd
2: LD +
3: Gnd
4: Heater 5Vdc

As pictured in the pic in post 5

> ####----*

Mod base freq :27.814 khz.
About 2.5 volts.
Heater pwm freq 285.878 khz.
24% duty
5Volt

Chad

[holokidd]

ok ive just shot three test holograms, the first two were banded quiet regularly (shot at different output powers), i then re-optimised the crystal heater and made sure diode was running full out............. A clean non banded hologram was then produced ! Telling me these ARE running Single Longitudal Mode ............

I just shut the system off, ill now flip the switch "on" again and see if it maintains SLM.

[holokidd]

ok, Latest update. So im trying to compose a good dual driver,one for the diode and one for the heater. Any way in my half/ass way of testing......
there was a brief open circut and then a reconnect ! Oops plop (i just heard $75 get flushed down the tiolet) ! Ok so it gave it life so others can shoot holograms with it's brothers!

so now im starting on my #2 unit. i figured ill take this one a little slower and use ESD and all soldered wireing befor field testing ..........

Before I really tear it apart, I figured you guys will appreacheat this.


"first white light laser pointer" ?

I simply removed the last turning mirror and the "hot"buttons on the left side, and with a little interior filing the beam exits nicely. If i were to do this again i was thinking about drilling a hole stright thru the unit just infront of the exit window and being able to then insert a pointer turning mirror and the beam would now exit thru the front window, and as a bonus if drilled out careful you should be able to still have a working projector (by removing then pointer mirror) .




white light laser pointer