| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wavelength tunable light source capable of programmably and quickly changing wavelengths. <P>SOLUTION: A wavelength tunable optical system includes a gain medium 1, a dispersion element 2 for wavelength-dispersing incident light from the gain medium 1, an optical deflector 3 for scanning wavelength-dispersed light in a direction non-parallel with a dispersion direction of the light, and a partial reflection element 4 for reflecting a part of the scanned light as return light. An incident light on the partial reflection element 4 has an area in a wavelength dispersion direction and in a scanning direction. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
