OPTICAL ASSEMBLY

Japanese Patent JP3147141

B2

PROBLEM TO BE SOLVED: To provide an optical assembly structure constituted by mounting a semiconductor element which generates large heat and an optical element which has high impedance on the same optical waveguide substrate.
SOLUTION: The element 2 which generates large heat is adhered onto a projection part 11 of the semiconductor substrate 10 directly or across an insulator layer of thickness of about submicrons. The optical element 3 with high impedance, on the other hand, is put in a groove formed in a recessed part of the semiconductor substrate 10 so that its optical axis is aligned with an optical waveguide layer coupled with the element. Or the potential of the semiconductor substrate 10 is held as high as a source voltage or ground potential to invert the polarity of the substrate crystal of the heat generating element 2 which is biased forward and the reverse bias element 3 which has a problem of floating capacity. Consequently, the element 2 which generates large heat and the high-impedance optical element 3 can be mounted on the same optical waveguide substrate while aligned with the optical axis of the optical waveguide 1. Consequently, a hybrid circuit having various optical elements and electronic elements built in on an optical waveguide can be mounted at low cost.

Shinji Tsuji
Ryuta Takahashi
Masato Shishikura
Satoru Kikuchi
Satoshi Aoki

JP22143395A

March 19, 2001

August 30, 1995

Click for automatic bibliography generation  

株式会社日立製作所
日立電線株式会社
日立東部セミコンダクタ株式会社
日本電信電話株式会社

G02B6/122; G02B6/42; H01L27/15; H01L31/0232; H01S5/00; H01S5/022; H04B10/40; H04B10/50; H04B10/60; H04B10/67; (IPC1-7): H01S5/022; G02B6/122; H01L27/15; H01L31/0232; H04B10/04

JP878657A
JP373583A
JP8334657A
JP7318765A

Yasuo Sakuta

Previous Patent: 眼鏡ホルダー

Next Patent: STEAM RECOMPRESSION TYPE VACUUM CONDENSATION DRYING DEVICE