A novel wavelength shift keying transmitter using a pair of Mach-Zehnder modulators

被引：2
作者：
Chi, Hao [1 ]
Zhang, Xianmin [1 ]
Yao, Jianping [2 ]
机构：
[1] Zhejiang Univ, Dept Informat & Elect Engn, Hangzhou 310027, Peoples R China
[2] Univ Ottawa, Sch Informat Technol & Engn, Microwave Photon Res Lab, Ottawa, ON K1N 6N5, Canada
来源：
OPTICS COMMUNICATIONS | 2008年 / 281卷 / 09期
基金：
中国国家自然科学基金;
关键词：
optical communications; modulation formats; wavelength shift keying; optical frequency shift keying; Mach-Zehnder modulator; passive optical network;
D O I：
10.1016/j.optcom.2008.01.008
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel and simple method to achieve wavelength shift keying (WSK) modulation is proposed and experimentally demonstrated. The proposed WSK transmitter consists of a pair of Mach-Zehnder modulators (MZMs) that are biased appropriately to achieve complementary operation. When a non-return-to-zero data stream is applied to the two MZMs, thanks to the complementary operation of the MZMs, the WSK-modulated signal can be obtained by combining the two intensity-modulated optical signals. A tunable optical delay line (ODL) is applied to achieve synchronization between the two optical signals. The ODL can also be used to compensate for the dispersion-induced walk-off effect between the two optical carriers. The application of the proposed WSK transmitter in a passive optical network is demonstrated, in which the downstream WSK signal is reused as optical carrier for upstream intensity-modulated data transmission. The proposed approach is experimentally realized; experimental results verify the feasibility of the approach. (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：2517 / 2521
页数：5
相关论文
共 11 条
  • [1] Microwave photonic filters with negative coefficients based on phase inversion in an electro-optic modulator
    Capmany, J
    Pastor, D
    Martinez, A
    Ortega, B
    Sales, S
    [J]. OPTICS LETTERS, 2003, 28 (16) : 1415 - 1417
  • [2] GARCES I, P ECOC 2006
  • [3] A novel wavelength shift keying transmitter based on optical phase modulation
    Hung, W
    Deng, N
    Chan, CK
    Chen, LK
    [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2004, 16 (07) : 1739 - 1741
  • [4] LiNbO3 high-speed optical FSK modulator
    Kawanishi, T
    Higuma, K
    Fujita, T
    Ichikawa, J
    Sakamoto, T
    Shinada, S
    Izutsu, M
    [J]. ELECTRONICS LETTERS, 2004, 40 (11) : 691 - 692
  • [5] Optical FSK transmission with group delay compensated balance detection
    Kawanishia, Tetsuya
    Fujita, Takahisa
    Higuma, Kaoru
    Ichikawa, Junichiro
    Sakamoto, Takahide
    Izutsu, Masayuki
    [J]. IEICE ELECTRONICS EXPRESS, 2005, 2 (11): : 333 - 337
  • [6] Reduction of cross-gain modulation in the semiconductor optical amplifier by using wavelength modulated signal
    Kim, HK
    Chandrasekhar, S
    [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2000, 12 (10) : 1412 - 1414
  • [7] Wavelength shift keying modulation up to 35 Gb/s with wavelength tone reuse to multiplex two 40 Gb/s DPSK signals
    Monroy, Idelfonso Tafur
    Kim, Sun-Jong
    Peucheret, Christophe
    Jeppesen, Palle
    [J]. OPTICAL FIBER TECHNOLOGY, 2007, 13 (01) : 13 - 17
  • [8] All-optical FSK-WDM to intensity modulation-OTDM transmultiplexing for access passive optical networks
    Polo, Victor
    Prat, Josep
    Olmos, J. J. Vegas
    Monroy, Idelfonso Tafur
    Koonen, A. M. J.
    [J]. JOURNAL OF OPTICAL NETWORKING, 2006, 5 (10): : 739 - 746
  • [9] A novel optical frequency-shift-keying transmitter based on polarization modulation
    Pun, SS
    Chan, CK
    Chen, LK
    [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (07) : 1528 - 1530
  • [10] All-optical WDM microwave filter with negative coefficients
    Vidal, B
    Corral, JL
    Martí, J
    [J]. IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (03) : 666 - 668
12