Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for FASTLITE MOZZA
Summary of Contents for FASTLITE MOZZA
- Page 1 MOZZA SYSTEM OPERATING MANUAL V1.2 V1.2 FASTLITE - info@fastlite.com...
- Page 2 Mozza manual FASTLITE - Mozza manual V1.2 1/21...
-
Page 3: Table Of Contents
........3 Discovering your Mozza 3.1 Packing list . -
Page 4: Introduction
CHAPTER Introduction The MOZZA is a multi-octave spectrum analyzer designed to measure accurately the spectrum of infrared radiations in the range 1-4.7 µm. It is based on an acousto-optic tunable filter (AOTF) and is specifically well adapted to pulsed sources such as femtosecond amplifiers, OPO or OPA with repetition rate up to 640 kHz, however, it can also be used with high repetition rate and continuous sources. - Page 5 fluctuation compensation, and its software, which reconstructs the spectrum as the measurement is running. The MOZZA is an infrared spectral characterization tool. Such a function, despite all efforts we put into designing this device as user-friendly as possible, cannot be carried out without an intelligent operator, understanding at least the basic principles and limitations of the technique.
-
Page 6: Mozza Theory
The acousto-optic interaction is sensitive to the polarization of the incident beam and in the Mozza spectrometer, the source must be S-polarized. -
Page 7: Lock-In Detection
Mozza spectrome- ter. To perform the measurement of the spectrum, the Mozza record the signal on the diffracted photodiode with and without acoustic wave in the acousto-optic crystal. Substracting the sig- nal without acoustic wave to the signal with acoustic wave, only the part corresponding to the FASTLITE - Mozza manual V1.2... - Page 8 Mozza manual Chapter 2 : Mozza Theory diffracted beam is eventually taken into account when the reconstruction of the spectrum is done. FASTLITE - Mozza manual V1.2 7/21...
-
Page 9: Discovering Your Mozza
The last four numbers indicate the number of the machine. Mozza Test sheet At the end of the paper version of this manual, the test sheet for your MOZZA is provided. This ensures that your MOZZA’s functionalities have been tested on calibration sources, with... -
Page 10: Software Installation And Starting
Connections and starting Connect the grounding cable to the grounding terminal and to the optical table or any grounding point. Plug the power supply cable and the USB cable into the MOZZA module and turn on Figure 4.1: Mozza installer window... - Page 11 Figure 4.2: Mozza connections and indicators the MOZZA. To prevent from electro-magnetic perturbations of the USB connection, the short USB cable, supplied with the Mozza, should be used when possible. If your source is pulsed (frep 640 kHz), then connect a 5V TTL trigger to the MOZZA module.
-
Page 12: Software Guide
CHAPTER Software guide When starting the MOZZA software, the following window appears. Some parts might be hidden, depending on the saved configuration of the software. Figure 5.1: Mozza software main window Menu area gives access to File, Device, Operations, View and Help settings, as de-... -
Page 13: Menu Area
Mozza manual Chapter 5 : Software guide Advanced Settings give access to specific parameters of the Mozza spectrometer such as trigger source and its value (trigger freq), offset of the reference photodiode, power and the possibility to enable or disable normalization process by the energy level of the laser. These settings will be described in details in section 5.4. -
Page 14: Operations Menu
Alignment allows the user to remove all the warnings. The warning are enabled when the Mozza is supposed to work properly; however, during the alignment procedure, warning can be annoying (due to low signal level for example). Clicking on ”Alignment” avoid the warning to be displayed. -
Page 15: View Menu
In this window (see Figure 5.6), the graph show the signal on the reference and diffracted photodiodes. Wavelength allows the user to choose the diffracted wavelength; Trigger delay controls the synchronisation of the Mozza with the laser. When working with high repetition rate laser (1kHz 25kHz), Mozza works in ”Trig on Previous”... -
Page 16: Help Menu
final point of the scan. If stop = start, then the MOZZA works in single frequency mode: the graph displays N points, with N = averages. It represents the signal sequentially;... -
Page 17: Advanced Settings
Start will start the measurement. By clicking again on Start before the end of the scan, Mozza will finish the current scan and stop (the button will then indicate ”Waiting” instead of ”Start”). Abort will finish the measurement immediately. -
Page 18: Panel
Additionally, by clicking on the cross on the left of the graph selection, a toolbar appears. With this toolbar, the user can zoom in and out, change to log scale or linear scale and save data. FASTLITE - Mozza manual V1.2 17/21... -
Page 19: Alignment
3 M4 holes can be used to put the feet in the MOZZA module. This chapter gives a step by step alignment procedure of the MOZZA. If it is the first time you are using the MOZZA, please read first chapter for a complete description of the MOZZA software functionality. -
Page 20: Advanced Alignment
Figure 6.1: MOZZA outside view Then, move mirrors and/or lens (outside of the Mozza, do not touch optics in the Mozza module) to maximize the signal on the photodiodes. If the source to be analyzed is a broadband source 500cm ), then a large signal must be observed on the reference photodiode. - Page 21 Then, use the Trigger Wizzard to set the correct value for trigger delay (see section 5.1.3). Your MOZZA is now ready for measurement, the user can close the MOZZA module and put the screws back in order to get rid of scattering light which can reduce the signal-to-noise ratio of the measurement.
-
Page 22: Troubleshooting
CHAPTER Troubleshooting This section provides first help when experiencing troubles with the MOZZA. In case your specific question or trouble is not solved by the following, or in case an optical damage is detected, please contact FASTLITE at info@fastlite.com Software starting problems Mozza Spectrometer is not recognized: ˆ...