Coherent light source and control method thereof, and...

Details Coherent light source and control method thereof, and... Coherent light source and control method thereof, and...

2008-04-08

2008-04-08

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Optical output stabilization

C372S029022, C372S029023, C372S030000

Reexamination Certificate

active

07356056

ABSTRACT:
In a display device that displays a video by scanning coherent light across a screen, modulation at high speeds and gradation are necessary for a coherent light source.An oscillation wavelength of a semiconductor laser outputting the fundamental wave is changed at high speeds through the plasma effect induced by applying a pulse current to the coherent light source. A change of the wavelength causes the output of a higher harmonic generated in a light wavelength conversion element to change, and gradation is produced using such a change.

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Chinese Office Action (along with English language translation) issued in Chinese Application No. 20050000221.8 dated Jul. 20, 2007.

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