Title:
SEMICONDUCTOR OPTICAL WAVEGUIDE CONTROLLER
Document Type and Number:
Japanese Patent JPH04263214
Kind Code:
A
Abstract:
PURPOSE:To obtain the optical waveguide semiconductor controller which consumes less electric power and allows high-speed operations without etching the semiconductor layers with the semiconductor optical waveguide controller which forms an optical waveguide by controlling the optical waveguide characteristics of the semiconductor. CONSTITUTION:The multiple quantum well semiconductor layer 3 alternately laminated with the two semiconductor layers varying in band gap energy is held by the 1st semiconductor layer 1 and the 2nd semiconductor layer 2 to form double hetero-junctions. Two band-shaped upper electrodes 41, 42 are formed apart a spacing 44 atop the 1st semiconductor layer 1. Two band-shaped lower electrodes 51, 52 are formed apart a spacing 54 on the rear surface of the 2nd semiconductor layer 2. A voltage source 7 is connected to the upper electrodes 41, 42 and the lower electrodes 51, 52 to constitute the controller in such a manner that electric fields are impressed to the multiple quantum well semiconductor layer 3.
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Inventors:
TABUCHI HARUHIKO
Application Number:
JP2335291A
Publication Date:
September 18, 1992
Filing Date:
February 18, 1991
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G02B6/12; G02F1/015; G02F1/025; H01S5/00; H01S5/026; H01S5/042; (IPC1-7): G02B6/12; G02F1/015; G02F1/025; H01S3/18
Attorney, Agent or Firm:
Yoshito Kitano