Laserwave PBS loss questions

[swamidog]

daedal,

that's great news. i'm waiting to hear back from bridge on a PM. in the meantime, could you provide photos of your testing procedure and resulting meter readings?

i'm fairly confident that i'm doing everything right, but i'd like to make sure of that before i spend additional money.

thanks!

I believe LaserWave has repaired this issue now. I have some new PBS cubes from Bridge and they measure reflection at ~99% and transmission at ~95%!!

Shameless plug: These will be available on the store below tonight

--DDL

[daedal]

daedal,

that's great news. i'm waiting to hear back from bridge on a PM. in the meantime, could you provide photos of your testing procedure and resulting meter readings?

i'm fairly confident that i'm doing everything right, but i'd like to make sure of that before i spend additional money.

thanks!

Absolutely... I will do this as soon as I can...

--DDL

[Doc]

I bought those cubes 1-10-10...i doubt much has changed since then...hmmmmmmm

I would hate to think that bridge would have dumped bad stock on this illustrious forum member

may be marc or bridge will chime in and explain the difference between mine and daedals (if any)

I'll see if i can get a red running and do some testing of my own...in all honesty...the test procedures and results there of, in this thread (and no offense to anyone) are vague at best...not a very scientific approach.

Tests made with 2 Laserwave 650nm 800mW modules one horizontal and one custom vertical polarisation.

Laserwave 15mm red PBS cube.

Calibrated Scientech 365 LPM


fig 1, the way it should work






fig 2, V polarisation losses minimised






fig 3, both polarisations minimised

[swamidog]

thanks doc! that's pretty consistent with what i'm seeing.

Tests made with 2 Laserwave 650nm 800mW modules one horizontal and one custom vertical polarisation.

Laserwave 15mm red PBS cube.

Calibrated Scientech 365 LPM


fig 1, the way it should work






fig 2, V polarisation losses minimised






fig 3, both polarisations minimised

[Laserman532]

thanks doc...that is exactly what we needed and if swami is seeing this than it confirms his findings.


I look forward to daedals details can you produce something like these drawings showing the new cubes?

[Doc]

thanks doc...that is exactly what we needed and if swami is seeing this than it confirms his findings.


I look forward to daedals details can you produce something like these drawings showing the new cubes?

I will re test as soon as I have one.

[daedal]

I look forward to daedals details can you produce something like these drawings showing the new cubes?

Sure thing

--DDL

[swamidog]

Sure thing

--DDL

nudge nudge nudge.

[daedal]

nudge nudge nudge.

Sorry man... Haven't gotten there yet...

--DDL

[swamidog]

DDL,

Are these figures your measurements or the measurements from Bridge?

I've got one of your cubes and am measuring a 19% loss on transmssion. 167mW in and 136mW out.

I believe LaserWave has repaired this issue now. I have some new PBS cubes from Bridge and they measure reflection at ~99% and transmission at ~95%!!

Shameless plug: These will be available on the store below tonight

--DDL