Product Manuals

FPGA python software installation instructions.

Copy the contents of the “NIST FPGA GUI” folder to local storage. There are five components needed to create the environment for the Comb GUI:

1. WinPython 2.7.10.3
2. Opal Kelly API
3. Python GUI and FPGA firmware
4. PyVISA.whl file
5. Opal Kelly Front Panel driver

1. Install WinPython 2.7.10.3 using the installer “WinPython-64bit-2.7.10.3”. Remember the installation directory.
2. Open a new file explorer window and navigate to the WinPython installation (wherever you just installed it) and open the folder \python-2.7.10.amd64\Lib\site-packages.
3. Copy the entire “ok” folder into the site-packages directory of the WinPython Installation.
4. Open a WinPython command prompt using the shortcut in the WinPython install directory. This provides a command prompt that has the proper path variables to run the GUI using the WinPython installation. Type the following:
   1. pip install {whl_file_dir}\PyVISA-1.8-py2.py3-none-any.whl.
   2. Press tab to cycle through the autocomplete options. Example:
   3. c:\users\osa\WinPython> pip install c:\users\osa\fpga\PyVISA-1.8-py2.py3-none-any.whl
   4. 3.5. Install the Opal Kelly Front Panel Windows Drivers by double-clicking “FrontPanelUSB-Win-x64-4.5.6”

The SLICE-FPGA dual-channel Offset Phase Lock Servo can be used to phase lock ƒ_CEO and ƒ_opt. Locking f_opt requires a reference CW laser and heterodyne setup (such as a 50:50 beam splitter and DWDM filter). The stability of the lock will depend on the reference laser used. All performance data is collected with a Rio Planex laser.

If you have not already done so, install Python and the FPGA software for controlling the SLICE-FPGA dual Offset Phase Lock Servo.