METHOD FOR TESTING WAVELENGTH VARIABLE LASER DEVICE AND WAVELENGTH VARIABLE LASER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method for testing a wavelength variable laser device and the wavelength variable laser device capable of suppressing errors in light-transmitting characteristics of an etalon.SOLUTION: There is disclosed a method for testing a wavelength variable laser device which is equipped with a wavelength variable laser and wavelength detection means having an etalon. This method includes: a first step for measuring a free spectral region interval of the etalon: a second step for acquiring drive conditions by tuning the wavelength into a target value provided between the top and the bottom of the free spectral region interval; and a third step for storing the drive conditions in a memory.