Patent ID: 11923659
Assignee: FURUKAWA ELECTRIC CO., LTD.
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 6:
7. An optical module comprising:
a laser light source unit configured to emit a laser beam;
a wavelength filter having a periodical transmission characteristic with respect to a wavelength of light;
a temperature controller on which the wavelength filter is placed and that is configured to adjust a temperature of the wavelength filter;
a heat generating body placed on the temperature controller; and
a control device configured to control the wavelength of the laser beam emitted from the laser light source unit and control the transmission characteristic of the wavelength filter based on an intensity of the laser beam transmitted through the wavelength filter, wherein
the control device is configured to change at least one of a target value of the wavelength control of the laser beam and a target value of the control of the wavelength filter based on a current value of the heat generating body, and wherein:
the heat generating body is an SOA, and
the changing includes, when an SOA current value supplied to the SOA is changed, changing the correction amount from the initial value of the target value in accordance with the SOA current value.