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

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We demonstrate a novel fused-type directional coupler that couples the LP01 mode in one fiber and the LP02 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 LP01, LP11, and LP21 modes were measured to be 35, 20, and 7 dB, respectively.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2003-12
Language
English
Article Type
Article
Keywords

2-MODE FIBER; DISPERSION COMPENSATION

Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.15, pp.1734 - 1736

ISSN
1041-1135
URI
http://hdl.handle.net/10203/19813
Appears in Collection
PH-Journal Papers(저널논문)
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