Photonic crystal laser

Details Photonic crystal laser Photonic crystal laser

2005-04-28

2010-12-28

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S009000, C372S020000, C372S029013, C372S029015, C372S038050, C372S039000, C372S044010, C372S081000, C372S087000

Reexamination Certificate

active

07860141

ABSTRACT:
One objective of the present invention is to provide a laser device which is capable of scanning beams of a laser light of high output power at a high speed without using mechanical scanning mechanisms. A plurality of the upper electrodes33is linearly arranged in the photonic crystal laser provided with an active layer21and a two-dimensional photonic crystal layer23which are held between upper electrodes33and a lower electrode27. A current is introduced from one upper electrode33or the plurality of the upper electrodes33disposed adjacently. Therefore, the active layer21generates light and the light is intensified by diffraction in the two-dimensional photonic crystal layer23, so that a stronger laser light is emitted to the outside from around the upper electrodes33into which a current is introduced. When the current-injected upper electrodes are sequentially switched, a laser light scan is performed in the direction of the array of the upper electrodes. Since this switching can be made electrically, a laser light scan can be achieved at a high speed without using the mechanical scanning mechanisms.

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Japanese Office Action issued Oct. 26, 2010 for Japanese Patent Application No. 2004-090412 (w/translation).

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