Title:
OPTICAL TRANSMITTER AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/026396
Kind Code:
A1
Abstract:
An aspect of the present invention is an optical transmitter comprising a division unit that divides a frequency-multiplexed input signal into signals of a plurality of bands, a plurality of phase modulators that are allocated to the plurality of bands divided by the division unit and perform phase modulation on the signals of the allocated bands, and a synchronous addition unit that performs synchronous addition on the signals modulated by the plurality of phase modulators. The input signal may be a multichannel video signal. An output from the same laser diode may be inputted to each of the plurality of phase modulators.
Inventors:
MIYATAKE RYO (JP)
SHITABA TOSHIAKI (JP)
YOSHIDA TOMOAKI (JP)
FUKADA YOICHI (JP)
TANABE AKIHIRO (JP)
SHITABA TOSHIAKI (JP)
YOSHIDA TOMOAKI (JP)
FUKADA YOICHI (JP)
TANABE AKIHIRO (JP)
Application Number:
PCT/JP2021/031145
Publication Date:
March 02, 2023
Filing Date:
August 25, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04L27/20; H04B10/548
Foreign References:
| JP2011019198A | 2011-01-27 | |||
| JP2010041706A | 2010-02-18 |
Other References:
TOSHIAKI SHITABA, TOMOAKI YOSHIDA, JUN TERADA: "Optical video distribution technology using FM batch conversion method", IEICE TECHNICAL REPORT, CS, vol. 119, no. 324 (CS2019-84), 28 November 2019 (2019-11-28), pages 97 - 101, XP009543699
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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