Journal ArticleDOI
Bend-induced loss for the higher-order spatial mode in a dual-mode fiber.
Craig D. Poole,S.-C. Wang +1 more
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TLDR
Wavelength and bend-radius dependence of the loss indicates that operation within ~40 nm of cutoff is feasible in dispersion compensators based on dual-mode fibers operated in the LP(11) spatial mode near cutoff.Abstract:
Measured loss for the LP11 mode in a dual-mode fiber subjected to a uniform bend shows a strong dependence on the orientation of the mode-field pattern relative to the plane of the fiber bend. Wavelength and bend-radius dependence of the loss indicates that operation within ~40 nm of cutoff is feasible in dispersion compensators based on dual-mode fibers operated in the LP11 spatial mode near cutoff.read more
Citations
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Journal ArticleDOI
Optical fiber-based dispersion compensation using higher order modes near cutoff
TL;DR: In this paper, a spatial mode-converter is used to selectively excite a higher order mode in specially designed multimode fiber, which can be used to compensate the positive dispersion in conventional single-mode fiber spans.
Journal ArticleDOI
Multimode fiber amplifier with tunable modal gain using a reconfigurable multimode pump.
TL;DR: A method for controlling mode-dependent gain in a multimode Erbium-doped fiber amplifier by tuning the mode content of a multi-modal pump is proposed, suitable for mode-division multiplexed transmission.
Patent
Wavelength-tunable light source
TL;DR: In this article, the wavelength-tunable light source (1) comprises an output source (2) suitable for generating an electromagnetic beam (R) during operation, and the light source also comprises a wavelength-selective first filter element (5) disposed downstream of the output source.
Journal ArticleDOI
Coherence-tuned interrogation of a remote elliptical-core, dual-mode fiber strain sensor
TL;DR: In this article, the authors investigate how coherence-tuned interrogation of the remote sensor fiber is affected by the coherence properties of the multimode laser diode source and the modal group index difference of the dual-mode fibers.
Patent
Low-loss dual-mode optical fiber compensators
TL;DR: In this article, it was discovered that improved performance and reduced size can be realized in dual-mode fiber dispersion compensators by careful alignment of the mode pattern relative to the plane of the bend of the spooled fiber.
References
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Journal ArticleDOI
Weakly guiding fibers.
TL;DR: Simple formulas and functions for the fiber parameters are presented as a help for practical design work that considers the propagation constant, mode delay, the cladding field depth, and the power distribution in the fiber cross section.
Journal ArticleDOI
Fiber-optic modal coupler using periodic microbending.
TL;DR: An efficient LP01 to LP11 modal coupler using periodic microbends, spaced by a beat length between the modes, is built and tested and the optical-wavelength dependence is investigated, as are the polarization characteristics and the LP mode approximation.
Journal ArticleDOI
Improved relations describing directional control in electromagnetic wave guidance
E. A. J. Marcatili,S. E. Miller +1 more
TL;DR: In this article, the authors give new expressions for the permitted bending radius with respect to mode conversion, using coupled-wave theory to categorize the wide variety of transmission media possible.
Journal ArticleDOI
Broadband dispersion compensation by using the higher-order spatial mode in a two-mode fiber
TL;DR: In this paper, a fiber-optic technique for compensating both first and second-order group-velocity dispersion in single-mode fiber spans is demonstrated by using the large waveguide dispersion that occurs for the higher-order (LP11) spatial mode in a twomode fiber near cutoff.
Journal ArticleDOI
Elliptical-core dual-mode fiber dispersion compensator
TL;DR: In this article, a 2.5-Gb/s system experiment using an elliptical-core dual-mode fiber operated in the LP/sub 11/ mode near cutoff is presented.
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