Molectron

Information on Molectron / coherent laser power meters. Ultimately for the ezlaze project. I'm mostly interested in pyroelectric heads for pulsed power.

Ecosystem

Ecosystems:

• J DB-25 smart probes
  • Interface: DB25
  • Also known as JSA?
  • 3sigma, FieldMax-TOP, FieldMax-TO, FieldMate.s
  • Intended to be used with J25, J50 power probes
  • I also have an S10 energy probe, seems to be compatible
• LM DB-25 smart probes
  • Interface: DB25
  • Intended to be used with LM probes

Warning: J25 and LM are not compatible.

Other DB25 probes (none are known to be compatible):

• Ophir
• Laserpoint
• Gentec
• Newport

List of Molectron related power meters:

• 3sigma
• 4omega
• FieldMate
• FieldMax-TO
• FieldMax-TOP
• Fieldmaster

Lots of good info:

• Energy Sensors Coherent J25.pdf
• 2009_LMCCatalog86.pdf

There was a conversion box you could buy at one point though (thermal-smartsensor-adapter-data-sheet.pdf), so it might just be different EPROM format

• JSA-BNC Adapter
• 0012-2340: JSA-BNC Adapter for use with 3sigma, FieldMax-TOP, and FieldMax-P
• 1056827: SmartSensor Adapter for use with 3sigma, FieldMax-TOP, FieldMax-TO,and FieldMate
• Automatically configures itself to work with LM-model sensors

J25

TODO: figure out pinout, EEPROM format so I can recal and upgrade adapters

3Sigma

File archive:

3sigmaAppQuickRef.pdf
3sigmaLVDriverUG.pdf
3sigma_LV_Driver.zip
3sigma Users Manual.pdf
3sigmaWinApps.zip

JD1000

Power supply: CS-1203000 (12V @ 3A, center positive)

McMaster

J25LP sensor

Came with JD1000. BNC output but no 25 pin adapter

Back:

MODEL NO: J25LP
SERIAL NO: 238

RESPONSITIVITY
5.10 VOLT/JOULE
337.1 nm

S10 sensor

From 3Sigmal (eBay)

3Sigma output:

Probe Resp: 2.570E-1 A/W @ 514 nm
Probe Cal Date Sep 10 2003
Wavelenth Corr 1064 nm / On
Attenuation Corr: 1.00E0 / Off
Area Corr 1.0000 sq cm / Off

DB25 label:

Molectron
MODEL NO.: S10
SERIAL NO. 0338H03

DB25 label:

Molectron
SER NO 0338H03
CAL DATE 9/18/03
CAL DUE 9/18/04
TECH B DUNLAP
0011-6322
TRACETABLE TO NIST

Cable label: 0012-2530

Pin	Function	Notes
1
2

J-25MB-HE sensor

3Sigma output:

FIXME

Cable label:

COHERENT
Item# 1110748
Model: J-25MB-HE
Serial#: 0984E07R

Responsitivity
6.694e + 0 V/J
Cal 1064 nm

LM-10

LM-10 HTD 250-10600nm 10mW-10w 500mJ/cm2 10ns @ 1064n Laser

Relatively cheap impulse buy to compare EEPROM formats

3Sigma (eBay) meter

Came with CW sensor

3Sigma (dumpster dive) meter

Came w/ sensor + BNC adapter

Screen is messed up

Came with Lemo cable. Doesn't fit trigger ports or anything I can tell

JD1000 meter

Capacitor exploded when plugged in (presumably due to age). Didn't work after, although some lights turned on. Scrapped