mach 5 100kHz Digital Joulemeter: M5-SJ, M5-IJ and M5-PJ Joulemeter Probes Measure every pulse at pps! Our new mach 5 Digital Joulemeter is designed to measure laser pulse energy up to 130,000 pps with 12 bit accuracy. It can capture and store up to 4 million pulses (40 seconds of data at maximum rep rate). Dump the data on demand over the USB 2.0 full speed interface and analyze the numbers using our powerful LabView Applications Software (see features below). Joulemeter Probes M5-PJ Pyroelectric Probe ( to 15 µm) M5-SJ Silicon Probe (9 to 1.064 µm) M5-IJ InGaAs Probe (1.0 to 1.6 µm) Pulse Rep Rate 1 to > pps Pulse Energy from pj to mj Calibration uncertainty +/-4% Digital temperature compensation for improved accuracy and linearity at high average power Probes include small integrating sphere for attenuation and enhanced spatial uniformity Smart probe for plug & play convenience Digital Joulemeter Accurately measure pulse energy at > pps Measure pulse jitter to 10 nsec Capture and store up to 40 seconds of pulse data (40 million pulses at 100 KHz) Data includes pulse energy, time stamp and temperature Track missing pulses External trigger input Real time analog output USB 2.0 (full speed) Diagnostic LED s for trigger, over temp, armed, buffer full and out of range LabView Sofware and Drivers included We ve designed several fast Joulemeter Probes, M5-SJ, M5-IJ and M5-PJ, that interface to the mach 5. The M5-SJ is a very sensitive UV enhanced Silicon probe, M5-IJ is a Near IR probe featuring an InGaAs detector and M5-PJ is our Pyroelectric probe intended for use from μj to mj wavelength and temperature correction is included in these smart probes. The system (probe and electronics) is accurate to 4% and is NIST Traceable. It includes a handy User Probe Cal feature that lets you calibrate the mach5 probe against your in-house Thermal Power Meter Standard. This incredibly fast Digital Joulemeter is designed for those who use high rep rate lasers, including diode pumped, Q-switched lasers and ultra-fast Fiber lasers. It is ideal for research, product development, final test, life test, laser and process diagnostics, and process control. Need help with your laser measurement? Give us a call! LabView Applications Software Includes Instrument Control Panel: range, trigger, zero, ARM, set batch size and much more. Live Mode Display: used for quick measurements and data logging. Perfect for laser set-up and tweaking. Strip Chart Display: view data set in large strip chart with user set cursors for min, max, SD and more. Data Histogram: view user defined histogram, best fit Gaussian curve and full statistics. Statistics: min, max, mean, SD, pulse jitter, spread, mode, etc. Set colors for emphasis. FFT (Fast Fourier Transform): super diagnostic tool for viewing periodic fluctuations in laser energy. Life Test Mode: automate your laser test and burn in! Set the date, time, test interval and size of data set... hit run! User Probe Cal: Lets you calibrate your mach5 probe at at a particular wavelength against your in-house Thermal Power Meter standard.
_ SpectrumDetector.com Performance Specifications Probe Specifications (@25ºC) M5-SJ1 M5-SJ2 M5-IJ1 M5-IJ2 M5-PJ Detector Type Silicon Silicon InGaAs InGaAs Pyroelectric Spectral Range (µm) 9-1.10 9-1.10 1.0 to 1.6 1.0 to 1.6-6.0 Probe Input Aperture Energy Range 200 nj - 200 µj 2 nj - 2 µj 200 nj - 200 µj 2 nj - 2 µj 20 µj - 20 mj Energy Resolution 2 nj 20 pj 2 nj 20 pj 0.2 µj Max Rep Rate (pps) Max Pulse Width (µsec) Max Probe Energy* (typ. @ 1047 nm) 200 µj 2 µj 200 µj 2 µj 20 mj Max Average Power (60 seconds) 20 W * Maximum pulse energy reading will vary with wavelegnth and probe voltage responsivity (Rv). Instrument Controls In/Out Mach 5 Relative Spectral Response Power Module 9V DC Relative Spectral Response On/Off Switch Power On Light 100% Detector Input Lemo Connector Detector Analog Output Computer Connection Trigger Input (TTL) Trigger Light Buffer Full BNC Connector 0-3.6V USB 2.0 Full Speed BNC Connector Green LED Amber LED Relative Response (%) 80% 60% 40% 20% Detector Overtemp Out of Range Armed Light Orange LED Red LED Green LED 0% 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Wavelength (um) Silicon InGaAs Pyroelectric Mechanical Specifications M5-SJ, M5-IJ and M5-PJ mach 5 Ø1.50" Ø6mm SPHERE APERTURE 2.30 " 2.19" DETECTOR EXTERNAL OUTPUT TRIGGER (TTL) DETECTOR INPUT ON OFF POWER + 9V USB mach 5 100KHz Joulemeter ON TRIGGER OVERTEMP ARMED OUT OF RANGE BUFFER FULL 6.67" LEMO CABLE 1/4-20, 8-32 THREADED MOUNTING HOLE 6.56" 9-11-2009
Instrument Controls Display The Instrument Controls Display can be used to set up the operation of the mach5 including range, trigger level, trigger source and delay. You can also choose the Autoset function which finds the appropriate settings for you. In addition this screen is used to ARM the unit, set the pulse batch size and select read to file or read to display option. Several operation lights are there including; initialization complete, mach5 found and USB active. This screen also includes the Save/Recall Instrument Set Up, Run Life Test buttons and the Live Mode Display. Live Mode Display The mach5 displays pulse data in real time in this mode. It captures pulse data by sampling at 10 Hz rate. Pulse energy, rep rate and probe temperature are displayed. A strip chart and complete stats are also available here. You can select range, set trigger level, select trigger source or choose Autoset. The Live Mode lets you use mach5 like a standard Digital Joulemeter and is very convenient when setting up your pulsed laser, monitoring its performance or setting up your test. When you leave Live Mode, instrument set up parameters are remembered for use in the main application. Strip Chart Display Data Strip Chart Display provides a quick graphical look at the pulse batch collected. You can set the pulse energy scale or use auto scale; you can zoom in on a few hundred or thousand pulses; you can set color cursors for min, max, SD or fit a trend line and much more. A full set of statistics are displayed just below the graph. Basic instrument controls are found at the bottom of the screen. Histogram Display Interested is viewing the statistical distribution of the pulse energy data set? This screen provides the user with this information and fits a best Gaussian Curve to the data. It displays compete statistical calculations at the bottom along with frequency and missing pulses. At the bottom of the screen you ll find the instrument control functions which allow you to range, arm and select batch size without leaving this screen. It s a handy feature!
Statistics Display The Stats Display offers a complete set of useful energy readings and calculated values that include full statistics, frequency, mode, variation and pulse jitter. You can set mach 5 up to read in "joules", "joules/cm 2 ", "watts" or "watts/cm 2 ". It also offers a look at missing pulses or pulses below a user defined energy threshold. Basic instrument controls are also available at the bottom like they are on all other screens. FFT (Fast Fourier Transform) Display The FFT Display offers yet another means of analyzing the performance of your high rep rate pulsed laser. It can reveal periodic pulse fluctuations that might be caused by system sources and otherwise go unnoticed. It shows the amplitude spectrum and phase. In addition it provides the ability to remove the DC component and/or unwrap phase. We know you will find this to be an effective diagnostic tool. Instrument controls are found at the left of the screen. Probe Data Display The probe data is presented and accessible on this screen. View the following; calibration wavelength, responsivity, cal temperature, and temperature coefficient. You can also use this screen to set the wavelength and set detector or aperture area (used for fluence). The spectral curve shows the relative response v.s. wavelength for the Joulemeter Probe attached to the mach5. Life Test Display Would you like to run a life test on your pulsed laser or a periodic test over some expected temperature range? We ve include a feature to accomplish this. This screen gives you the ability to select a start time & date, stop time & date, number of pulses and test interval / test duration in fractions of an hour. It asks you to identify a file and will automatically increment the file identity as each pulse set is acquired. A status window informs you when each pulse set has been collected and shows the time and test number. The additional file info window allows you to add comments that will accompany your data files. Take a look at a typical data set on the next page.
Life Test Display (continued) The Notepad File seen on the left is typical of a data set selected and taken while in the "Life Test" mode. When we set this up we decided to take 5 data sets of 10,000 pulses each at 1 minute intervals. We selected min, mean, max and STDEV as the values to record. From top to bottom and left to right you can see the time, date, and data for each set. You can see the headers for the data points and complete set up information for mach 5... i.e. range, trigger, batch size, etc. You will find the Life Test mode to be incredibly useful! User Probe Cal This mode allows you to calibrate our mach 5 probe, at a particular wavelength, against your in house Thermal Power Probe standard. It can be accessed by selecting "Wavelength Correction" on the mach 5 Control Screen and then clicking on User Probe Cal. The screen and copy below explain how to perform the calibration. Why would you want to use this feature? Correlation to data taken previously using a Power Meter may be important to you. If there is ever concern about degradation over time, you can use this to re-calibrate at any time. User Probe Cal (continued) Here's a brief explanation of how this works. Measure the average power of your laser with your power meter. Enter the measurement value in the "Measured Average Power" window (like 0.2), then select the "Read Average Power (F2)" button, which ARMS mach 5 to take a power measurement (i.e. pulse energy times average frequency). Now push the "Calculate Probe Response (F3)" button and mach 5 will calculate the new spectral response factor and then write it to the mach 5 probe memory. Notice the %Absorption curve (at the left) and the small "blip" at 532 nm... this is how the new absorption and correction factor shows up. After the probe EPROM is written the mach 5 re arms and takes a new data set, to confirm the new correction data is read from the probe. You can always go back to factory settings by clicking on the Load a Default Probe Response (F4).