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公开(公告)号：US12068575B2
公开(公告)日：2024-08-20
申请号：US17241584
申请日：2021-04-27
发明人： Yu-Chen Chen , Chien-Hung Lin , Bo-Tsun Chou , Chih-Yuan Weng , Kuo-Jui Lin
CPC分类号： H01S5/026 , H01S5/04256 , H01S5/11 , H01S5/18361 , H01S5/343
摘要： A laser device includes a substrate, a first waveguiding layer, an active layer, a second waveguiding layer, a contact layer, an insulating layer, a light-transmissive conducting layer, a first electrode, and a second electrode. The first waveguiding layer, the active layer, the second waveguiding layer, and the contact layer form an epitaxy structure having a first platform and a second platform. The first platform has multiple holes to form a photonic crystal structure. The insulating layer is over an upper surface and a sidewall surface of the first platform, and over an upper surface of the second platform. The sidewall surface passes through the contact layer, the second waveguiding layer, and the active layer. The light-transmissive conducting layer connects to the photonic crystal structure through an aperture of the insulating layer. The first electrode has an opening corresponding to the aperture. The second electrode is under the substrate.
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公开(公告)号：US20230361531A1
公开(公告)日：2023-11-09
申请号：US18335149
申请日：2023-06-15
发明人： Yu-Chen Chen , Chien-Hung Lin , Bo-Tsun Chou , Chih-Yuan Weng
CPC分类号： H01S5/11 , H01S5/185 , H01S5/2018 , H01S5/0425 , H01S5/341 , H01S2301/17
摘要： A laser device includes a first waveguiding layer, an active layer, a second waveguiding layer, a contact layer, a first insulating layer, a plurality of hole fillings, a first electrode, and a second electrode. The first waveguiding layer, the active layer, the second waveguiding layer, and the contact layer are stacked in sequence to form an epitaxy structure. The epitaxy structure has a first platform, the first platform has multiple holes to form a photonic crystal structure. The first insulating layer is over an upper surface and a sidewall surface of the first platform, wherein the first insulating layer has a first aperture corresponding to the photonic crystal structure. The hole fillings are respectively filled in the holes. The first electrode is over the photonic crystal structure. The second electrode is electrically connected to the first waveguiding layer.
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公开(公告)号：US11509115B2
公开(公告)日：2022-11-22
申请号：US17145691
申请日：2021-01-11
发明人： Chien-Hung Lin , Bo-Tsun Chou , Chih-Yuan Weng , Yu-Chen Chen
摘要： An electrically pumped photonic-crystal surface-emitting laser, the epitaxy structure has a first mesa, the first mesa has multiple air holes and forming a photonic crystal structure, the epitaxy structure further has a second mesa, the second mesa and photonic crystal structure is facing the same direction; a first metal electrode arranged on the insulating layer, and covering the photonic crystal structure; a second metal electrode arranged on the second mesa and protruding out of the groove, making the first metal electrode and the second metal electrode face the same direction; and further make the first metal electrode connect to the first connecting metal and make the second metal electrode connect to the second connecting metal for making the photonic crystal structure become flip chip.
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