LabMax Laser Power & Energy Meter

The high performance laser power & energy meter

Further Information
» LabMax Datasheet

LabMax is Coherent’s high performance laser power and energy meter. LabMax is compatible with all of Coherent’s optical, thermal and pyroelectric sensor heads. What sets LabMax apart is its ability to capture and report every pulse at kHz rep rates, multiple interface options and compatibility with LM-series quadrant thermopiles for beam power and position analysis. LabMax is available in two versions: the LabMax TO is compatible with Coherent’s thermal and photodiode sensors for average power measurements; while the LabMax TOP adds the capability of pulsed energy measurements when used with an EnergyMax series pyroelectric sensor.

LabMax majors on flexibility; the large LCD can be tilted from 0-60 degrees, while the console itself can also be tilted on its kick-stand which provides for very flexible viewing:

LabMax provides flexible viewing options

The meter is also compatible with all Coherent sensors, including PM- and LM-series thermopiles, OP- and LM-series photodiode sensors and EnergyMax and legacy DB25 pyroelectric heads. This allows users of existing Coherent and Molectron meters to upgrade from their current meter to LabMax. Pulsed laser measurements are another strong point for LabMax, with every pulse measured from single shot to 1kHz, and pulse sampling at up to 10kHz. Coherent’s EnergyMax pyroelectric sensors are the perfect complement to LabMax and set new standards for accuracy.

For a meter so powerful, data storage and export become important considerations. LabMax doesn’t disappoint, with serial RS232 and USB interfaces as standard, an analogue output, and the capability of logging to an on-board USB flash memory. In addition, the LabMax TOP is now available with the option of a GPIB interface. PC application software and a full library of LabView® drivers are provided for remote control of LabMax. A stand-out feature available only on LabMax is a bull’s-eye target that displays the beam’s position and makes laser alignment so much simpler to perform. This facility is available in conjunction with Coherent’s LM-series sensors that employ quadrant thermopiles. LabMax further exploits this with a selectable plot of beam position with time for beam pointing stability testing.

Specifications & Ordering Information

Specifications	LabMax TO	LabMax TOP
Suitable For	Measuring the average power of pulsed & CW lasers	Measuring the average power of pulsed & CW lasers and the energy of pulsed lasers
Sensor Compatibility	PM-series thermal LM-series quadrant thermal OP-series photodiode LM-series photodiode	PM-series thermal LM-series quadrant thermal OP-series photodiode LM-series photodiode EnergyMax series pyroelectric Legacy J-series pyroelectric¹
Features	Zero offset correction	Zero offset correction
	Selectable auto-ranging	Selectable auto-ranging
	Selectable wavelength compensation	Selectable wavelength compensation
	Statistic (max, min, mean, range, standard deviation)	Statistic (max, min, mean, range, standard deviation)
		Average power²
		Rep rate²
	Averaging	Averaging
	Attenuator compensation	Attenuator compensation
	Area input for irradiance (dose) calculation, display in W/cm²	Area input for irradiance (dose) calculation, display in W/cm² or J/cm²
Additional Display Parameters	Laser stability Trend charting Tuning graph Beam position³ Positional trend³	Laser stability Trend charting Tuning graph Beam position³ Positional trend³
Display	112 x 78mm back-lit LCD with adjustable angle & contrast	112 x 78mm back-lit LCD with adjustable angle & contrast
Measurement Range⁴
Thermal	10µW - 30.0kW	10µW - 30.0kW
Photodiode	1nW - 300.0mW	1nW - 300.0mW
Pyroelectric	N/A	1nJ - 300.0J
Displayed Ranges	User-selected 3, 4 or 5 digits	User-selected 3, 4 or 5 digits
Measurement Resolution	+/- 0.1% of full scale	+/- 0.1% of full scale
Beam Position Resolution³	0.1mm	0.1mm
Max Rep Rate⁵	N/A	1kHz (every pulse recorded)
		10kHz (pulse sampling)
Power Sampling Rate	10Hz	10Hz
Accuracy	+/- 1.0% of reading	+/- 1.0% of reading
	+/- 2.0% (analogue output)	+/- 2.0% (analogue output)
Interface	USB 2.0	USB 2.0
	RS232	RS232
GPIB Interface	N/A	Optional
Analogue Output	1, 2 & 4V	1, 2 & 4V
Trigger	N/A	Internal & external triggering
Power	90-260VAC, 50/60Hz using supplied mains adaptor	90-260VAC, 50/60Hz using supplied mains adaptor
	4400mAh rechareable battery pack	4400mAh rechareable battery pack
Compliance	CE, ROHS	CE, ROHS
Size	152 x 229 x 53mm	152 x 229 x 53mm
Weight	1.04kg (incl. standard batteries)	1.04kg (incl. standard batteries)
Accessories Supplied	Standard rechargeable battery pack Power cord AC mains adaptor (3) RCA-BNC convertors USB cable RS232 cable LabMax 256MB USB flash drive Soft case CD (containing application software & LabView® drivers) User manual Quick-start guide Calibration certificate	Standard rechargeable battery pack Power cord AC mains adaptor (3) RCA-BNC convertors USB cable RS232 cable GPIB cable (w/optional interface) LabMax 256MB USB flash drive Soft case CD (containing application software & LabView® drivers) User manual Quick-start guide Calibration certificate
Optional Accessories	Extended life rechargeable battery pack⁶	Extended life rechargeable battery pack⁶

(1) J-series (legacy) pyroelectric sensors can be used with LabMax in conjunction with the JSA-BNC adaptor (p/n 0012-2340) which is available separately. LabMax is NOT compatible with legacy LM-P series pyroelectric sensors
(2) Reporting of average power and rep rate is only available when LabMax is used with a pyroelectric sensor
(3) Beam position and positional trend features only available with LM-series quadrant thermopile sensor
(4) Measurement range varies with sensor chosen
(5) Applies only to energy measurements of pulsed lasers made using a pyroelectric sensor
(6) Extended life battery pack gives approx. 16 hours between charges compared to approx. 8 hours for the standard pack