Chinese Journal of Lasers, Volume. 39, Issue 4, 405001(2012)

Dual-Wavelength Sampled Fiber Bragg Grating by Changing Refractive Index of Fiber

Sun Guodan1、*, Wang Rong2, Pu Tao1, and Wei Zhihu1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • show less

    A novel dual-wavelength (DW) sampled fiber Bragg grating (FBG) is proposed. Phase shift between two adjacent FBG units is achieved by increasing direct current (DC) refractive index of FBG. The FBG with only identical ±1 order reflective spectrum is optimized with cosine sampling function. This method has the advantages of flexible wavelength design, low fabrication precision and low cost. Comparison between uniform DC phase shift FBG, sample DC phase shift FBG and traditional discrete phase shift FBG is made. Uniform DC phase shift FBG and sample DC phase shift FBG are fabricated, which show a good agreement with theory. DW filter with channel spacing 0.08 nm is fabricated, and the experiment results verify the feasibility of this proposed method.

    Tools

    Get Citation

    Copy Citation Text

    Sun Guodan, Wang Rong, Pu Tao, Wei Zhihu. Dual-Wavelength Sampled Fiber Bragg Grating by Changing Refractive Index of Fiber[J]. Chinese Journal of Lasers, 2012, 39(4): 405001

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category: Optical communication

    Received: Nov. 7, 2011

    Accepted: --

    Published Online: Mar. 17, 2012

    The Author Email: Sun Guodan (chinacard4@163.com)

    DOI:10.3788/cjl201239.0405001

    Topics