LabMax Laser Power & Energy Meter
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.
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 | 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 |
| 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 |
Standard rechargeable battery pack |
| 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