With the Vortex and Stablewave tunable laser, how can I perform high-resolution wavelength scans over a narrow wavelength range?
If you want to perform high-resolution wavelength scans over a narrow wavelength range, use the analog Frequency Modulation input on the back panel of the laser controller. The reason for this is that the electronic gain of the Frequency Modulation input can be selected to be either 25x or 1x. This can only be done with the Vortex laser system, and it requires issuing a command through the GPIB or RS-232 interface. By selecting the 1x gain for the Frequency Modulation input, the frequency resolution of the Vortex will be very high because it is less susceptible to electronic noise pick-up from the analog input signal.
