sweep_start_wavelength#
method
- TSL550.sweep_start_wavelength(val: float = None) float[source]#
Sets the start wavelength of a sweep.
Sets the starting wavelength for subsequent sweeps. If no value is specified, the current starting wavelength setting is returned.
The valid range is 1500 - 1630 (nm) with a minimum step of 0.0001 nm.
- Parameters:
- valfloat, optional
The starting value of the wavelength sweep in nanometers.
- Returns:
- float
The current sweep start wavelength in nm.
Examples
>>> laser.sweep_start_wavelength() 1500.0 >>> laser.sweep_start_wavelength(1545) 1545.0