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