Whenever you have time, we should probably add the laser abstract class, adapt this PR, which just needs some remaining and I can implement it on #161.

sounds good to me or I can put it in here as well. Maybe we can come up some functions for the abstract class?
def laser_on():

def laser_off():

def set_power():

def set_cw_mode():

def set_digital_modulation_mode():

def check_laser_status():

merge solution to #180 before this.