Title:
OPTICAL AMPLIFIER, OPTICAL AMPLIFICATION SYSTEM, WAVELENGTH CONVERTER, AND OPTICAL COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/065229
Kind Code:
A1
Abstract:
This optical amplifier is provided with: a pump light source unit; a polarization multiplexer/de-multiplexer; a first polarization-dependent optical amplification fiber section; a second polarization-dependent optical amplification fiber section; an optical multiplexer/de-multiplexer connected to the first polarization-dependent optical amplification fiber section and the second polarization-dependent optical amplification fiber section so as to input a pump light to each; a light discharge unit that constitutes an optical loop along with the first polarization-dependent optical amplification fiber section and the second polarization-dependent optical amplification fiber section, and that discharges the pump light, which has propagated through each of the first polarization-dependent optical amplification fiber section and the second polarization-dependent optical amplification fiber section, outside the optical loop; and an optical circulator that outputs a signal light that is parametrically amplified by the first polarization-dependent optical amplification fiber section and the second polarization-dependent optical amplification fiber section by the pump light in the optical loop, is polarized and synthesized by the polarization multiplexer/de-multiplexer, and outputted from the polarization multiplexer/de-multiplexer.
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Inventors:
TAKASAKA SHIGEHIRO (JP)
Application Number:
PCT/JP2016/080418
Publication Date:
April 20, 2017
Filing Date:
October 13, 2016
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
G02F1/39
Domestic Patent References:
| WO2012121223A1 | 2012-09-13 | |||
| WO2013077434A1 | 2013-05-30 |
Other References:
JAZAYERIFAR,M. ET AL.: "Impact of SBS on Polarization-Insensitive Single-Pump Optical Parametric Amplifiers Based on a Diversity Loop Scheme", ECOC 2014, 2014, pages 1 - 3, XP032689450
UMEKI,T. ET AL.: "PDM Signal Amplification Using PPLN-Based Polarization-Independent Phase- Sensitive Amplifier", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 33, no. 7, pages 1326 - 1332, XP011575169
TAKAHASHI,M. ET AL.: "Compact PM-HNLF Module with Increased SBS Threshold having -29dB polarization crosstalk", OFC/NFOEC, March 2012 (2012-03-01), pages 1 - 3, XP032339907
TAKASAKA,S. ET AL.: "Polarization Insensitive Fiber Optical Parametric Amplifier Using a SBS Suppressed Diversity Loop", OFC 2016, March 2016 (2016-03-01), pages 1 - 3, XP032942317
See also references of EP 3364244A4
UMEKI,T. ET AL.: "PDM Signal Amplification Using PPLN-Based Polarization-Independent Phase- Sensitive Amplifier", JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 33, no. 7, pages 1326 - 1332, XP011575169
TAKAHASHI,M. ET AL.: "Compact PM-HNLF Module with Increased SBS Threshold having -29dB polarization crosstalk", OFC/NFOEC, March 2012 (2012-03-01), pages 1 - 3, XP032339907
TAKASAKA,S. ET AL.: "Polarization Insensitive Fiber Optical Parametric Amplifier Using a SBS Suppressed Diversity Loop", OFC 2016, March 2016 (2016-03-01), pages 1 - 3, XP032942317
See also references of EP 3364244A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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