Title:
差動4相位相変調システム、方法、及び装置
Document Type and Number:
Japanese Patent JP2011526445
Kind Code:
A
Abstract:
A differential quadrature phase shift keying (DQPSK) system, method, and device are disclosed. The DQPSK system includes: a transmitter, configured to: pre-code an input first original signal and second original signal, and generate an in-phase signal and a quadrature signal; modulate the in-phase signal to generate a first differential phase shift keying (DPSK) signal, and modulate the quadrature signal to generate a second DPSK signal; perform a 90 degree phase shift on the first DPSK signal or the second DPSK signal, and interfere with the other DPSK signal to obtain a DQPSK signal; and send the DQPSK signal to a receiver; the receiver, configured to: demodulate the DQPSK signal sent from the transmitter in detuned filter mode, and restore the first original signal and the second original signal through optical/electrical (O/E) conversion. With the present invention, the accurate control on the phase difference between two arms of an Asymmetric Mach-Zehnder Interferometer (AMZI) is avoided, thus facilitating the signal control and adjustment, and greatly lowering the system cost.
Inventors:
Chan, Shinryan
Yu, Yu
Way, run
Li, Lijung
Yu, Yu
Way, run
Li, Lijung
Application Number:
JP2011515072A
Publication Date:
October 06, 2011
Filing Date:
May 27, 2009
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
H04B10/04; G02F1/01; H04B10/06; H04B10/142; H04B10/152; H04J14/00; H04J14/02
Domestic Patent References:
| JP2007166119A | 2007-06-28 |
Other References:
JPN6012023564; Ｔａｅ-Ｙｏｕｎｇ Ｋｉｍ， ｅｔ．ａｌ．: 'pi-ｐｈａｓｅ ｓｈｉｆｔｅｄ ｆｉｂｅｒ Ｂｒａｇｇ ｇｒａｔｉｎｇ-ｂａｓｅｄ ｏｐｔｉｃａｌ ＤＰＳＫ ｄｅｍｏｄｕｌａｔｏｒ ｗｉｔｈ ｏｐｔｉｃａｌｌｙ ｔｕｎａｂｌｅ ｐｈａｓｅ ｓｈｉ' Ｏｐｔｉｃａｌ Ｆｉｂｅｒ Ｃｏｍｍｕｎｉｃａｔｉｏｎ Ｃｏｎｆｅｒｅｎｃｅ， ２００６ ａｎｄ ｔｈｅ ２００６ Ｎａｔｉｏｎａｌ Ｆｉｂｅｒ Ｏｐｔｉｃ Ｅｎｇｉｎｅｅｒｓ Ｃｏｎｆｅｒｅｎｃｅ． ＯＷＩ４９．ｐｄｆ, 20060305, ｐａｇｅｓ．１-３, ＩＥＥＥ
JPN6012023565; Ｉｌｙａ Ｌｙｕｂｏｍｉｒｓｋｙ， ｅｔ．ａｌ．: 'ＤＰＳＫ ｄｅｍｏｄｕｌａｔｏｒ ｂａｓｅｄ ｏｎ ｏｐｔｉｃａｌ ｄｉｓｃｒｉｍｉｎａｔｏｒ ｆｉｌｔｅｒ' ＩＥＥＥ Ｐｈｏｔｏｎｉｃｓ Ｔｅｃｈｎｏｌｏｇｙ Ｌｅｔｔｅｒｓ Ｖｏｌ．１７， Ｉｓｓｕｅ．２, 200502, ｐａｇｅｓ．４９２-４９４, ＩＥＥＥ
JPN6012023561; Ｉｌｙａ Ｌｙｕｂｏｍｉｒｓｋｙ， ｅｔ．ａｌ．: 'Ｏｐｔｉｃａｌ ＤＱＰＳＫ Ｒｅｃｅｉｖｅｒ Ｗｉｔｈ Ｅｎｈａｎｃｅｄ Ｄｉｓｐｅｒｓｉｏｎ Ｔｏｌｅｒａｎｃｅ' ＩＥＥＥ Ｐｈｏｔｏｎｉｃｓ Ｔｅｃｈｎｏｌｏｇｙ Ｌｅｔｔｅｒｓ Ｖｏｌ．２０， Ｉｓｓｕｅ．７, 20080401, ｐａｇｅｓ．５１１-５１３, ＩＥＥＥ
JPN6012023562; Ａ．Ｄ'Ｅｒｒｉｃｏ， ｅｔ．ａｌ．: 'ＷＤＭ-ＤＰＳＫ ｄｅｔｅｃｔｉｏｎ ｂｙ ｍｅａｎｓ ｏｆ ｆｒｅｑｕｅｎｃｙ-ｐｅｒｉｏｄｉｃ Ｇａｕｓｓｉａｎ ｆｉｌｔｅｒｉｎｇ' Ｅｌｅｃｔｒｏｎｉｃｓ Ｌｅｔｔｅｒｓ Ｖｏｌ．４２， Ｉｓｓｕｅ．２, 20060119, ｐａｇｅｓ．１１２-１１４, ＩＥＥＥＥ
JPN6012023563; 'Ｓｉｍｕｌｔａｎｅｏｕｓ Ｄｅｍｏｄｕｌａｔｉｏｎ ａｎｄ Ｃｌｏｃｋ-Ｒｅｃｏｖｅｒｙ ｏｆ ４０-Ｇｂ／ｓ ＮＲＺ-ＤＰＳＫ Ｓｉｇｎａｌｓ Ｕｓｉｎｇ ａ Ｍｕｌｔｉｗａｖｅｌｅｎｇｔｈ Ｇａｕ' ＩＥＥＥ Ｐｈｏｔｏｎｉｃｓ Ｔｅｃｈｎｏｌｏｇｙ Ｌｅｔｔｅｒｓ Ｖｏｌ．２０， Ｉｓｓｕｅ．１０, 20080515, ｐａｇｅｓ．７９１-７９３, ＩＥＥＥ
JPN6012023565; Ｉｌｙａ Ｌｙｕｂｏｍｉｒｓｋｙ， ｅｔ．ａｌ．: 'ＤＰＳＫ ｄｅｍｏｄｕｌａｔｏｒ ｂａｓｅｄ ｏｎ ｏｐｔｉｃａｌ ｄｉｓｃｒｉｍｉｎａｔｏｒ ｆｉｌｔｅｒ' ＩＥＥＥ Ｐｈｏｔｏｎｉｃｓ Ｔｅｃｈｎｏｌｏｇｙ Ｌｅｔｔｅｒｓ Ｖｏｌ．１７， Ｉｓｓｕｅ．２, 200502, ｐａｇｅｓ．４９２-４９４, ＩＥＥＥ
JPN6012023561; Ｉｌｙａ Ｌｙｕｂｏｍｉｒｓｋｙ， ｅｔ．ａｌ．: 'Ｏｐｔｉｃａｌ ＤＱＰＳＫ Ｒｅｃｅｉｖｅｒ Ｗｉｔｈ Ｅｎｈａｎｃｅｄ Ｄｉｓｐｅｒｓｉｏｎ Ｔｏｌｅｒａｎｃｅ' ＩＥＥＥ Ｐｈｏｔｏｎｉｃｓ Ｔｅｃｈｎｏｌｏｇｙ Ｌｅｔｔｅｒｓ Ｖｏｌ．２０， Ｉｓｓｕｅ．７, 20080401, ｐａｇｅｓ．５１１-５１３, ＩＥＥＥ
JPN6012023562; Ａ．Ｄ'Ｅｒｒｉｃｏ， ｅｔ．ａｌ．: 'ＷＤＭ-ＤＰＳＫ ｄｅｔｅｃｔｉｏｎ ｂｙ ｍｅａｎｓ ｏｆ ｆｒｅｑｕｅｎｃｙ-ｐｅｒｉｏｄｉｃ Ｇａｕｓｓｉａｎ ｆｉｌｔｅｒｉｎｇ' Ｅｌｅｃｔｒｏｎｉｃｓ Ｌｅｔｔｅｒｓ Ｖｏｌ．４２， Ｉｓｓｕｅ．２, 20060119, ｐａｇｅｓ．１１２-１１４, ＩＥＥＥＥ
JPN6012023563; 'Ｓｉｍｕｌｔａｎｅｏｕｓ Ｄｅｍｏｄｕｌａｔｉｏｎ ａｎｄ Ｃｌｏｃｋ-Ｒｅｃｏｖｅｒｙ ｏｆ ４０-Ｇｂ／ｓ ＮＲＺ-ＤＰＳＫ Ｓｉｇｎａｌｓ Ｕｓｉｎｇ ａ Ｍｕｌｔｉｗａｖｅｌｅｎｇｔｈ Ｇａｕ' ＩＥＥＥ Ｐｈｏｔｏｎｉｃｓ Ｔｅｃｈｎｏｌｏｇｙ Ｌｅｔｔｅｒｓ Ｖｏｌ．２０， Ｉｓｓｕｅ．１０, 20080515, ｐａｇｅｓ．７９１-７９３, ＩＥＥＥ
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Kato Kazunori
Katsuichi Nishimoto