Not sure if you know what udev rules are but it might help to create a rule for this device. From what I’ve found googling, the FTDI devices have been a pain to quite a few people. I’ve never run across this problem but I generally create udev rules for all my plug/n/play hardware.
Put the following line in this file: /etc/udev/49-ftdi.rules
SUBSYSTEMS==“usb”, KERNEL==“ttyUSB*”, ATTRS{idVendor}==“0403”, ATTRS{idProduct}==“6001”, MODE:=“0666”, SYMLINK+=“ttyLASER”