An optical circuit and the source for optical amplifiers of excitation light - Nippon Telegraph and Telephone Corporation

Title:

An optical circuit and the source for optical amplifiers of excitation light

Document Type and Number:

Japanese Patent JP5952643

Kind Code:

B2

Inventors:

Kenya Suzuki
Takayuki Mizuno
Yasuaki Hashizume

Application Number:

JP2012120813A

Publication Date:

July 13, 2016

Filing Date:

May 28, 2012

Export Citation:

Assignee:

Nippon Telegraph and Telephone Corporation

International Classes:

G02F1/35

Domestic Patent References:

Foreign References:

US6731425
US20040008918

Attorney, Agent or Firm:

Patent Business Corporation Tani/Abe Patent Office

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