Design and Parametric Study of Depressed Core Optical Fiber

Abstract In this paper, the bending loss and the modal field distribution (MFD) of the depressed core optical fiber (DCOF) are investigated. The effect of optical and geometrical parameters on the bending loss, power confinement and MFD are examined in these fibers. Based on unique three layered structure of DCOF, the central air core, germanium silicate ring core, and silica cladding along with its mode transformation capability, we also demonstrated versatile applications in local area, wide area optical communication networks and tunable wavelength selective devices. Detailed design parameters and operation principles of the DCOF are discussed.

[1]  T. Kimura,et al.  Bending loss of propagation modes in arbitrary-index profile optical fibers. , 1978, Applied optics.

[2]  Low loss mode converter based on adiabatically tapered hollow optical fibre , 2001 .

[3]  J. Knight,et al.  New Ways to Guide Light , 2002, Science.

[4]  Dietrich Marcuse,et al.  Curvature loss formula for optical fibers , 1976 .

[5]  D J Richardson,et al.  2R-regenerative all-optical switch based on a highly nonlinear holey fiber. , 2001, Optics letters.

[6]  D. Marcuse,et al.  Radiating leaky-mode losses in single-mode lightguides with depressed-index claddings , 1982 .

[7]  D. Richardson,et al.  Polarization mode dispersion reduction in spun large mode area silica holey fibres. , 2004, Optics express.

[8]  M. Kavehrad,et al.  Analytical model for rare-earth-doped fiber amplifiers and lasers , 1994 .

[9]  A. Stentz,et al.  Optical properties of high-delta air silica microstructure optical fibers. , 2000, Optics letters.

[10]  Chao Lu,et al.  Scalar model and exact vectorial description for the design analysis of hollow optical fiber components , 2003 .

[11]  M.J.F. Digonnet,et al.  Closed-form expressions for the gain in three- and four-level laser fibers , 1990 .

[12]  Jianping Yin,et al.  LP01-mode output beam from a micro-sized hollow optical fiber: A simple theoretical model and its applications in atom optics , 1999 .

[13]  J K Sahu,et al.  High-power, low-noise, Yb-doped, cladding-pumped, three-level fiber sources at 980 nm. , 2003, Optics letters.

[14]  Motoichi Ohtsu,et al.  Optical potential for atom guidance in a cylindrical-core hollow fiber , 1995 .

[15]  P. Russell,et al.  Endlessly single-mode photonic crystal fiber. , 1997, Optics letters.

[16]  B. Eggleton,et al.  Microstructured optical fiber devices. , 2001, Optics express.

[17]  J. Joannopoulos,et al.  Guiding optical light in air using an all-dielectric structure , 1999 .

[18]  James A. Harrington,et al.  Transmission properties of hollow glass waveguides for the delivery of CO/sub 2/ surgical laser power , 1999 .