The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2015
Filed:
Jan. 20, 2012
Masaki Asobe, Atsugi, JP;
Takeshi Umeki, Atsugi, JP;
Kouji Enbutsu, Atsugi, JP;
Akio Tokura, Atsugi, JP;
Yutaka Miyamoto, Yokosuka, JP;
Hidehiko Takara, Yokosuka, JP;
Hirokazu Takenouchi, Atsugi, JP;
Isao Tomita, Atsugi, JP;
Masaki Asobe, Atsugi, JP;
Takeshi Umeki, Atsugi, JP;
Kouji Enbutsu, Atsugi, JP;
Akio Tokura, Atsugi, JP;
Yutaka Miyamoto, Yokosuka, JP;
Hidehiko Takara, Yokosuka, JP;
Hirokazu Takenouchi, Atsugi, JP;
Isao Tomita, Atsugi, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
The phase sensitive amplifier according to the present invention is a phase sensitive amplifier that uses the optical mixing using a nonlinear optical effect to amplify the signal light. The phase sensitive amplifier according to the present invention includes: the first second-order nonlinear optical element; and the second second-order nonlinear optical element. The first second-order nonlinear optical element causes the fundamental wave light to generate second harmonic light used as pump light and separates only the second harmonic light. The second second-order nonlinear optical element includes a multiplexer to multiplex the signal light with the second harmonic light and spectrally separates only the amplified signal light. The multiplexed signal light and second harmonic light are used subjected to parametric amplification.