Title:
OPTICAL-IC CHIP FOR LIGHT AMPLIFIER
Document Type and Number:
Japanese Patent JPH04223447
Kind Code:
A
Abstract:
PURPOSE:To obtain an light amplifying IC chip having excellent producibility and reliability, and simultaneously, reduced in size and weight. CONSTITUTION:An optical multiplexing element 8 for mixing signal light and exciting light inputted via respective waveguides 4 and 6; and an optical branching element 16 branching the signal light multiplexed by the optical multiplexing element 8, then, amplified by an external amplifying optical fiber, and inputted again via a waveguide 12, into plural passages, and emitting them, are formed on a single chip substrate 2, respectively.
Inventors:
ITO HIDEAKI
IKUNISHI SHIYOUGO
TANAKA HIROYUKI
NAKAZAWA MASATAKA
KIMURA YASURO
IKUNISHI SHIYOUGO
TANAKA HIROYUKI
NAKAZAWA MASATAKA
KIMURA YASURO
Application Number:
JP40699090A
Publication Date:
August 13, 1992
Filing Date:
December 26, 1990
Export Citation:
Assignee:
MITSUBISHI CABLE IND LTD
NIPPON TELEGRAPH & TELEPHONE
NIPPON TELEGRAPH & TELEPHONE
International Classes:
G02B6/12; G02F1/35; H01S3/06; H01S3/07; (IPC1-7): G02B6/12; G02F1/35; H01S3/07
Attorney, Agent or Firm:
Kazuhide Okada
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