Wavelength tunable external resonator laser using optical...

Details Wavelength tunable external resonator laser using optical... Wavelength tunable external resonator laser using optical...

H - Electricity

01

S

H01S 3/1055 (2006.01) H01S 5/14 (2006.01)

Patent

CA 2391796

The present invention relates to an optical deflector driven by an electrical signal, and a wavelength unable external resonator using the same. The optical deflector of a triangle shape, capable of controlling the refractive index of a beam depending on the electrical signal, is positioned between a reflection mirror and a diffraction grating in a Littman-Metcalf mode external resonator or between a lens and the diffraction grating in a Littrow mode external resonator. Thus, even with the reflection mirror and the diffracting grating fixed, the refractive index of the beam generated from a laser diode can be controlled by adjusting the electrical signal applied to the optical deflector, so that beam having a specific wavelength can be focused and the wavelength can be rapidly and consecutively tuned.

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