METHOD OF CONTROLLING WAVELENGTH TUNABLE LASER, CONTROL DATA STRUCTURE OF WAVELENGTH TUNABLE LASER, AND WAVELENGTH TUNABLE LASER

摘要

A method of controlling a wavelength tunable laser to control an oscillation wavelength based on a difference between a detection result of a wavelength by a wavelength detecting unit and a target value, the method includes: acquiring a first drive condition of the wavelength tunable laser to make the wavelength tunable laser oscillate at a first wavelength from a memory; calculating a second drive condition to drive the wavelength tunable laser at a second wavelength by referring to the first drive condition and a wavelength difference between the first wavelength and the second wavelength, the second wavelength differing from the first wavelength; and driving the wavelength tunable laser based on the second drive condition calculated at the calculating of the second drive condition.

主权项

1. A wavelength tunable laser apparatus comprising:
a wavelength tunable laser; a wavelength detecting unit configured to detect an output wavelength of the wavelength tunable laser; a memory configured to store a drive condition of the wavelength tunable laser; a control unit configured to acquire a first drive condition of the wavelength tunable laser to make the wavelength tunable laser oscillate at a first wavelength from the memory, calculate a second drive condition to drive the wavelength tunable laser at a second wavelength by referring to the first drive condition and a wavelength difference between the first wavelength and the second wavelength, the second wavelength differing from the first wavelength, and drive the wavelength tunable laser based on the second drive condition.