TY - JOUR
T1 - Analysis and design of photonic crystal fibers based on an improved effective-index method
AU - Li, Hongbo
AU - Mafi, Arash
AU - Schülzgen, Axel
AU - Li, Li
AU - Temyanko, Valery L.
AU - Peyghambarian, Nasser
AU - Moloney, Jerome V.
N1 - Funding Information:
Manuscript received May 24, 2006; revised January 18, 2007. This work was supported by the Air Force Office for Scientific Research, Air Force Material Command, USAF, under Grant AFOSR F49620-02-1-0380.
PY - 2007/5
Y1 - 2007/5
N2 - The modal characteristics of photonic crystal fibers (PCFs), with guiding cores consisting of one or seven missing airholes, are investigated with the finite element method and compared to those of step-index fibers (SIFs). To extend the applicability of the classical SIF theories to PCFs, the effective refractive index of photonic crystal cladding and the effective core radius of a PCF are studied systematically, based on simple physically consistent concepts. With the new effective cladding index and core radius of PCFs, the classical definition of the V parameter for SIFs is extended to PCFs, and a highly efficient approach based on the effective-index method is developed for the design of PCFs. The new design approach has been successfully employed to analyze the modal properties of PCF lasers with depressed-index cores and further tested by using it to effectively estimate the number of guided modes for PCFs with large cores.
AB - The modal characteristics of photonic crystal fibers (PCFs), with guiding cores consisting of one or seven missing airholes, are investigated with the finite element method and compared to those of step-index fibers (SIFs). To extend the applicability of the classical SIF theories to PCFs, the effective refractive index of photonic crystal cladding and the effective core radius of a PCF are studied systematically, based on simple physically consistent concepts. With the new effective cladding index and core radius of PCFs, the classical definition of the V parameter for SIFs is extended to PCFs, and a highly efficient approach based on the effective-index method is developed for the design of PCFs. The new design approach has been successfully employed to analyze the modal properties of PCF lasers with depressed-index cores and further tested by using it to effectively estimate the number of guided modes for PCFs with large cores.
KW - Effective-index method (EIM)
KW - Fiber laser
KW - Photonic crystal fiber (PCF)
KW - V parameter
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U2 - 10.1109/JLT.2007.893924
DO - 10.1109/JLT.2007.893924
M3 - Article
AN - SCOPUS:34248549159
SN - 0733-8724
VL - 25
SP - 1224
EP - 1230
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 5
ER -