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Single-mode fiber coupler

Applied Optics, 1981
This paper describes the fabrication process and coupling principle of a single-mode fiber coupler. Precise etching properties of the fibers used are presented. Fiber etching is shown to result in smooth surfaces. Coupling is seen to vary with the refractive index of the material separating the fiber cores.
F J, Liao, J T, Boyd
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Single-mode optical waveguides

Applied Optics, 1979
An efficient and powerful technique has been developed to treat the problem of wave propagation along arbitrarily shaped single-mode dielectric waveguides with inhomogeneous index variations in the cross-sectional plane. This technique is based on a modified finite-element method.
C, Yeh, K, Ha, S B, Dong, W P, Brown
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Expanded single mode fiber

OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171), 2001
We present a solution to maintain an expanded mode in the extremity of a single mode fiber by using a piece-of multimode step index fiber. With a 25 /spl mu/m spot size, the average connection loss is 0.36 dB (without Fresnel reflection) for a multimode section length inferior to 5 cm.
Chanclou, Philippe   +2 more
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Polarization maintaining Single-mode fibers

Conference on Lasers and Electro-Optics, 1981
Polarization-maintaining single-mode fibers will find application in acoustooptic sensors and fiber gyroscopes. In this study both stress-induced birefringence and elliptical core polarization-maintaining single-mode fibers were developed and evaluated.
F I, Akers, R E, Thompson
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Investigation on Single-Mode-Multimode-Single-Mode Fiber Structure

2011 Symposium on Photonics and Optoelectronics (SOPO), 2011
The multimode interference (MMI) theory and corresponding re-imaging phenomena occurring in a single - mode-multimode-single-mode (SMS) fiber structure is investigated. And the commercially available beam propagation method (BPM) have been adapted and analyzed to model the light propagation in this structure.
Yu Zhao, Yongxing Jin, Houhui Liang
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