Two-Mode photonic crystal fibers and applications thereof
- Summary
- A two-mode photonic crystal fiber includes a core of a substantially transparent core material. The core material has a core refractive index and a length, and has a core diameter. The fiber also includes a cladding region surrounding the length of core material. The cladding region has a first substantially transparent cladding material, having a first refractive index. The first substantially transparent cladding material has embedded along its length a substantially periodic array of holes, having a diameter, d, and being spaced apart by a pitch, .LAMBDA.. The holes have a second refractive index, which is less than the first refractive index. The dimensions of the hole diameter, d, and the pitch, .LAMBDA., co-operate to give two modes propagation within the photonic crystal fiber independent of input radiation wavelength for any value of the pitch, .LAMBDA., for a substantially fixed d/.LAMBDA. ratio within a range of approximately 0.45 0.65.
- Supplementary Information
- Inventor: Jin, Wei | Ju, Jian | Wang, Zhi
Priority Number: US7190869B2
IPC Current: G02B000632
US Class: 385125
Assignee Applicant: The Hong Kong Polytechnic University
Title: Two-mode photonic crystal fiber and applications thereof
Usefulness: Two-mode photonic crystal fiber and applications thereof
Summary: Used in interferometric sensor, optic frequency shifter, optic wavelength filter, optic wavelength tunable switch (claimed), mode converter, mode selective coupler, and add-drop multiplexer.
Novelty: Photonic crystal fiber for e.g. interferometric sensor, has cladding region surrounding length of core material, where region includes transparent cladding material with refractive index
- Industry
- Optics
- Sub Category
- Optical Fiber
- Others
- JIN Wei
JU Jian
WANG Zhi
- Country/Region
- USA
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