Study of the homodyne detection for the optical M-ary QAM signal on the optical frequency synchronous network
Project/Area Number |
15H04009
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Communication/Network engineering
|
Research Institution | Oita University |
Principal Investigator |
KOGA Masafumi 大分大学, 大学院理工研究科, 教授 (60448545)
|
Co-Investigator(Kenkyū-buntansha) |
MIZUTORI Akira 大分大学, 理工学部, 助教 (10190646)
|
Project Period (FY) |
2015 – 2017
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2017: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2015: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
|
Keywords | 光位相同期 / 光ホモダイン検波 / 偏波多重 / 多値QAM信号 / コヒーレント光通信 / マルチコア光ファイバ / 情報通信工学 / 多値QAM符号 / 光ファイバ通信 / 量子エレクトロニクス / フォトニックネットワーク / ホモダイン検波 / 位相同期 |
Outline of Final Research Achievements |
We demonstrated signal light carrier automatic phase-lock operation by our newly developed microcomputer-controlled phase-lock loop circuit. 16 -QAM optical signal homodyne detection was demonstrated by extracting +/-π/4 and +/-3π/4-phase data symbols from 16-QAM signal, our decision-driven Costas loop for QPSK code achieved the LO light phase-locking to the signal carrier wave modulated at 16-QAM code. We investigated approaches that can cancel nonlinear phase noise effectively for the phase-conjugate pair diversity transmission of 16-QAM WDM signals through multi-core fiber.
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Report
(4 results)
Research Products
(18 results)