| 摘要 |
PROBLEM TO BE SOLVED: To realize a wavelength stabilizer for variable wavelength light source in which the wavelength of a variable wavelength light source can be controlled accurately. SOLUTION: Wavelength of a variable wavelength light source is controlled to a predetermined wavelength by injecting a wavelength multiplexed light into a variable wavelength light source, e.g. a multielectrode DBR laser. In this regard, a wavelength multiplexed light previously stabilized highly accurately through a wavelength multiplexed light supply module 200 is employed. A wavelength multiplexed light source comprising a plurality of semiconductor lasers 210 subjected to wavelength control through a wavelength monitor circuit 240 is provided for an optical crossconnect, for example, in order to distribute a plurality of variable wavelength light sources OS entirely thereto. Output from an optical frequency comb generator can be employed as the wavelength multiplexed light previously stabilized highly accurately. |
