Patent Number: 7,711,019

Title: Variable wavelength light source

Abstract: A gain element and a variable wavelength reflector form a resonator. A wavelength selective element selects a resonance wavelength in the resonator. A beam splitter is provided for monitoring an incident light from the gain element and a reflected light from the variable wavelength reflector. A phase adjustment element is arranged in the resonator. A wavelength-lock control unit locks the resonance wavelength to a desired resonance wavelength by adjusting the phase of the resonance wavelength based on the monitored incident light and by adjusting the variable wavelength reflector based on a ratio between the incident light and the reflected light.

Inventors: Soda; Haruhisa (Tokyo, JP)

Assignee: FiBest Limited

International Classification: H01S 3/13 (20060101)

Expiration Date: 5/04/12018