Coherent time-stretch transformation for real-time capture of wideband signals

被引：20
|
作者：
Buckley, Brandon W. [1 ,2 ]
Madni, Asad M. [2 ]
Jalali, Bahram [2 ,3 ,4 ,5 ]
机构：
[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
[3] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA
[4] Univ Calif Los Angeles, David Geffen Sch Med, Dept Surg, Los Angeles, CA 90095 USA
[5] Univ Calif Los Angeles, Dept Bioengn, Los Angeles, CA 90095 USA
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 18期
基金：
美国国家科学基金会;
关键词：
TO-DIGITAL CONVERTER; SYSTEMS; FIBER; MODULATION; DISPERSION; CONVERSION;
D O I：
10.1364/OE.21.021618
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Time stretch transformation of wideband waveforms boosts the performance of analog-to-digital converters and digital signal processors by slowing down analog electrical signals before digitization. The transform is based on dispersive Fourier transformation implemented in the optical domain. A coherent receiver would be ideal for capturing the time-stretched optical signal. Coherent receivers offer improved sensitivity, allow for digital cancellation of dispersion-induced impairments and optical nonlinearities, and enable decoding of phase-modulated optical data formats. Because time-stretch uses a chirped broadband (>1 THz) optical carrier, a new coherent detection technique is required. In this paper, we introduce and demonstrate coherent time stretch transformation; a technique that combines dispersive Fourier transform with optically broadband coherent detection. (C) 2013 Optical Society of America
引用
收藏
页码：21618 / 21627
页数：10
相关论文
共 50 条
  • [1] Real-time optical vector network analyzer based on coherent time-stretch
    Li, Lun
    Xu, Liang
    Zhang, Lei
    Duan, Yuhua
    Li, Yaoshuai
    Yang, Ningning
    Zhang, Chi
    Zhang, Xinliang
    2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2020,
  • [2] Time-stretch methods capture fast waveforms -: Time-stretch preprocessing, part 2
    Jalali, B
    Coppinger, F
    Bhushan, AS
    MICROWAVES & RF, 1999, 38 (04) : 62 - +
  • [3] Time-Stretch Accelerated Processor for Real-time, In-service, Signal Analysis
    Lonappan, Cejo K.
    Buckley, Brandon
    Lam, Daniel
    Madni, Asad M.
    Jalali, Bahram
    Adam, Jost
    2014 IEEE GLOBAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING (GLOBALSIP), 2014, : 707 - 711
  • [4] Real-time tracking of single shockwaves via amplified time-stretch imaging
    Hanzard, Pierre-Henry
    Godin, Thomas
    Idlahcen, Said
    Roze, Claude
    Hideur, Ammar
    APPLIED PHYSICS LETTERS, 2018, 112 (16)
  • [5] Photonic time-stretch digitizer and its extension to real-time spectroscopy and imaging
    Fard, Ali M.
    Gupta, Shalabh
    Jalali, Bahram
    LASER & PHOTONICS REVIEWS, 2013, 7 (02) : 207 - 263
  • [6] Real-time characterization of spectral coherence of ultrafast laser based on optical time-stretch
    Xu, Yiqing
    Wei, Xiaoming
    Ren, Zhibo
    Wong, Kenneth K. Y.
    Tsia, Kevin
    REAL-TIME MEASUREMENTS, ROGUE EVENTS, AND EMERGING APPLICATIONS, 2016, 9732
  • [7] Real-time optical time-stretch statistical characterization of supercontinuum suppression by minute continuous wave
    Ren, Zhibo
    Qiu, Yi
    Xu, Yiqing
    Wong, Kenneth K. Y.
    Tsia, Kevin
    2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2014,
  • [8] Photonic Time-Stretch Technology with Prismatic Pulse Dispersion towards Fast Real-Time Measurements
    Yang, Lei
    Chen, Hui
    Ma, Jun
    Zhu, Qian
    Yang, Tong
    Xie, Hongbo
    PHOTONICS, 2019, 6 (03)
  • [9] Real-time analyzers capture complex signals
    不详
    MICROWAVES & RF, 2004, 43 (02) : 128 - +
  • [10] Coherent Time-Stretch Transform for Near-Field Spectroscopy
    DeVore, Peter T. S.
    Buckley, Brandon W.
    Asghari, Mohammad H.
    Solli, Daniel R.
    Jalali, Bahram
    IEEE PHOTONICS JOURNAL, 2014, 6 (02):
12345