• DocumentCode
    841456
  • Title

    Broad-band LP02 mode excitation using a fused-type mode-selective coupler

  • Author

    Song, Kwang Yong ; Kim, Byoung Yoon

  • Author_Institution
    Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
  • Volume
    15
  • Issue
    12
  • fYear
    2003
  • Firstpage
    1734
  • Lastpage
    1736
  • Abstract
    We demonstrate a novel fused-type directional coupler that couples the LP/sub 01/ mode in one fiber and the LP/sub 02/ mode in another using a few-mode fiber. The phase-matching condition was satisfied in the coupler waist by initially etching and prepulling portions of the fibers based on simple numerical calculation. A coupling efficiency of about 70% was maintained over 1515-1595-nm wavelength range, and the mode extinction ratios with LP/sub 01/, LP,/sub 11/, and LP/sub 21/ modes were measured to be 35,20, and 7 dB, respectively.
  • Keywords
    optical directional couplers; optical fibre couplers; optical filters; 1515 to 1595 nm; broad-band LP/sub 02/ mode excitation; coupler waist; directional couplers; few-mode fiber; fused-type mode-selective coupler; phase-matching condition; Arm; Bandwidth; Frequency conversion; Interference; Optical coupling; Optical fiber communication; Optical fiber couplers; Optical fiber devices; Optical fiber polarization; Optical sensors;
  • fLanguage
    English
  • Journal_Title
    Photonics Technology Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1041-1135
  • Type

    jour

  • DOI
    10.1109/LPT.2003.819710
  • Filename
    1253518
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=841456