Width-tunable optical pulse generator based on the polarization-sensitive feature of LiNbO3 crystal in Mach–Zehnder modulator

Abstract. A width-tunable optical pulses generation scheme by using a single Mach–Zehnder modulator (MZM) based on polarization-sensitive feature of LiNbO3 crystal is proposed and experimentally demonstrated. In the proposed system, a continuous-wave light is sent into MZM via a polarization controller (PC), and interference in a polarization beam splitter after passing through another PC. Experimental results show that the full-width at half-maximum of pulses (10 GHz) can be tuned continuously from 20.39 to 53 ps by adjusting the DC bias voltage of MZM and PCs. A 40 to 10  Gbit  /  s optical time division multiplexing (OTDM) signal demultiplexing experiment has been demonstrated using the time window provided by the proposed scheme. And the results show that the proposed width-tunable optical pulses generation scheme can be used in OTDM demultiplexing.

[1]  M. Lawrence,et al.  Lithium niobate integrated optics , 1993, Integrated Optics Volume 1: Modeling, material platforms and fabrication techniques.

[2]  L.J. Richardson,et al.  Limitations of 40 Gbit/s based dispersion managed WDM transmission: solitons versus quasi-linear propagation regime , 2001, OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171).

[3]  Jan Conradi,et al.  Bandwidth-Efficient Modulation Formats for Digital Fiber Transmission Systems , 2002 .

[4]  T. Luo,et al.  Enhanced Robustness of RZ WDM Systems Using Tunable Pulse-Width Management at the Transmitter , 2002, 2002 28TH European Conference on Optical Communication.

[5]  U. Keller.  Recent developments in compact ultrafast lasers , 2003, Nature.

[6]  D.J. Richardson,et al.  Wavelength and duration-tunable 10-GHz 1.3-ps pulse source using dispersion decreasing fiber-based distributed Raman amplification , 2004, IEEE Photonics Technology Letters.

[7]  Chao Lu,et al.  Pulsewidth-tunable CS-RZ signal format with better tolerance to dispersion and nonlinear degradation in optical transmission system , 2004, IEEE Photonics Technology Letters.

[8]  Y. Wang,et al.  Tunable all-optical wavelength conversion and wavelength multicasting using orthogonally-polarized fiber FWM , 2004, Conference on Lasers and Electro-Optics, 2004. (CLEO)..

[9]  Motoharu Matsuura,et al.  Performance improvement of optical RZ-receiver by utilizing an all-optical waveform converter. , 2005, Optics express.

[10]  J.E. McGeehan,et al.  Performance optimization of RZ data format in WDM systems using tunable pulse-width management at the transmitter , 2005, Journal of Lightwave Technology.

[11]  O. Mitomi,et al.  High-speed and low-driving-Voltage thin-sheet X-cut LiNbO/sub 3/ Modulator with laminated low-dielectric-constant adhesive , 2005, IEEE Photonics Technology Letters.

[12]  S. Kawanishi,et al.  Optical pulse generator using phase modulator and linearly chirped fiber Bragg gratings , 2005, IEEE Photonics Technology Letters.

[13]  A. Willner,et al.  Width-tunable optical RZ pulse train generation based on four-wave mixing in highly nonlinear fiber , 2005, IEEE Photonics Technology Letters.

[14]  Y. Takushima,et al.  All-optical 80-Gb/s add-drop multiplexer using fiber-based nonlinear optical loop mirror , 2005, IEEE Photonics Technology Letters.

[15]  Xiaoyi Bao,et al.  Generating a high-extinction-ratio pulse from a phase-modulated optical signal with a dispersion-imbalanced nonlinear loop mirror. , 2006, Optics letters.

[16]  Hwa-Yaw Tam,et al.  Width-tunable pulse generation using four-wave mixing in bismuth based highly nonlinear fiber , 2007 .

[17]  Tetsuya Kawanishi,et al.  10 GHz, 2.4 ps pulse generation using a single-stage dual-drive Mach-Zehnder modulator. , 2008, Optics letters.

[18]  Nicholas Madamopoulos,et al.  SOA-based loop mirror for tunable pulse-width generation , 2009 .

[19]  Dexiu Huang,et al.  Simultaneous multiple DWDM channel NRZ-to-RZ regenerative format conversion at 10 and 20 Gb/s. , 2009, Optics express.

[20]  Shilong Pan,et al.  Generation of a chirp-free optical pulse train with tunable pulse width based on a polarization modulator and an intensity modulator. , 2009, Optics letters.

[21]  Yan Li,et al.  A phase stable short pulse generator using a DPMZM and phase modulators for application in 160 GBaud DQPSK systems , 2012 .

[22]  Kun Xu,et al.  160-GBaud DQPSK Optical Time-Division Demultiplexing Using a Polarization Modulator , 2012, IEEE Photonics Technology Letters.

[23]  Lin Jintong,et al.  Generation and performance Investigation of 40GHz phase stable and pulse width-tunable optical time window based on a DPMZM. , 2012, Optics express.

[24]  Quang Nguyen-The,et al.  Generation of multi-wavelength picosecond pulses with tunable pulsewidth and channel spacing using a Raman amplification-based adiabatic soliton compressor. , 2012, Optics express.

[25]  Deming Kong,et al.  Ultra-low timing-jitter 40GHz clock recovery using EAM-MZM double-loop and its application in a 640Gbit/s OTDM system , 2012, 2012 38th European Conference and Exhibition on Optical Communications.

[26]  Hao Hu,et al.  640 GBd Phase-Correlated OTDM NRZ-OOK Generation and Field Trial Transmission , 2013, Journal of Lightwave Technology.

[27]  Qiang Wang,et al.  Optical Time-Division Demultiplexing Using a Time-Lens-Assisted Mach–Zehnder Modulator , 2013, IEEE Photonics Technology Letters.

[28]  Jing Li,et al.  Simultaneous two-distributary-channel demultiplexing of an OTDM signal using a bidirectionally operated highly nonlinear fiber after 100 km transmission , 2014 .

[29]  Masataka Nakazawa,et al.  Ultrafast Nyquist OTDM demultiplexing using optical Nyquist pulse sampling in an all-optical nonlinear switch. , 2015, Optics express.

[30]  Jianguo Zhang,et al.  Design of optical time-division multiplexed systems using the cascaded four-wave mixing in a highly nonlinear photonic crystal fiber for simultaneous time demultiplexing and wavelength multicasting , 2015 .

[31]  Munehiko Nagatani,et al.  Single-carrier 1-Tb/s PDM-16QAM transmission using high-speed InP MUX-DACs and an integrated OTDM modulator. , 2015, Optics express.

[32]  Hung Nguyen Tan,et al.  Wavelength Translation of Dual-Polarization Phase-Modulated Nyquist OTDM at Terabit/s , 2016, Journal of Lightwave Technology.