Title:
FREQUENCY SHIFTER AND FREQUENCY SHIFTING METHOD
Document Type and Number:
WIPO Patent Application WO/2013/024818
Kind Code:
A1
Abstract:
This frequency shifter (10) comprises a substrate (20) having a polarization reversal structure, a modulating electrode (30) provided on the surface of the substrate (20), and a waveguide (40) provided to the substrate (20). Supplying an alternating-current electric field to the modulating electrode (30) causes diffracted light to be generated from incident light that is incident on the waveguide (40), the diffracted light having a frequency that is shifted from the frequency of the incident light. The width of the waveguide (40) is preferably greater than that of the modulating electrode (30). The thickness of the substrate (20) is preferably no greater than 0.3 mm.
Inventors:
HISATAKE SHINTAROU (JP)
KOBAYASHI TETSUROU (JP)
KOBAYASHI TETSUROU (JP)
Application Number:
PCT/JP2012/070502
Publication Date:
February 21, 2013
Filing Date:
August 10, 2012
Export Citation:
Assignee:
UNIV OSAKA (JP)
HISATAKE SHINTAROU (JP)
KOBAYASHI TETSUROU (JP)
HISATAKE SHINTAROU (JP)
KOBAYASHI TETSUROU (JP)
International Classes:
G02F2/02
Foreign References:
| JPH1083001A | 1998-03-31 |
Other References:
SHINTARO HISATAKE ET AL.: "Multiplication of optical frequency shift by cascaded electro-optic traveling phase gratings operating above 10 GHz", OPTICS LETTERS, vol. 36, no. 8, 15 April 2011 (2011-04-15), pages 1350 - 1352
KENJI HATTORI ET AL.: "Kiban Hakuhenka ni yoru Giji Sokudo Seigogata Hikari Iso Henchoki no Hencho Koritsu Kojo", EXTENDED ABSTRACTS, JAPAN SOCIETY OF APPLIED PHYSICS AND RELATED SOCIETIES (CD-ROM), vol. 57, 2010, pages 19A-A-5
KENJI HATTORI ET AL.: "Kiban Hakuhenka ni yoru Giji Sokudo Seigogata Hikari Iso Henchoki no Hencho Koritsu Kojo", EXTENDED ABSTRACTS, JAPAN SOCIETY OF APPLIED PHYSICS AND RELATED SOCIETIES (CD-ROM), vol. 57, 2010, pages 19A-A-5
Attorney, Agent or Firm:
MAEI Hiroyuki (JP)
Hiroyuki Maei (JP)
Hiroyuki Maei (JP)
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Claims: