摘要:
An integrated optical receiver architecture may be used to couple light between a multi-mode fiber (MMF) and silicon chip which includes integration of a silicon de-multiplexer and a high-speed Ge photo-detector. The proposed architecture may be used for both parallel and wavelength division multiplexing (WDM) based optical links with a data rate of 25 Gb/s and beyond.
摘要:
Disclosed are multi-stage optical amplifiers that propagate higher-order mode (HOM) signals. One embodiment, among others, comprises a first segment of optical fiber in which a first HOM signal propagates, a second segment of optical fiber in which a second HOM signal propagates, and a mode converter that converts the first HOM signal into the second HOM signal.
摘要:
The invention relates to a fiber structure(700), which has one or more refractive index disturbances(750, 760)outside a fiber core (710)for discriminating one or more high order modes in the fiber structure. The invention also relates to a method for discriminating one or more high order modes,an arrangement having the high order modes discriminating fiber structure, and a device having the high order mode discriminating fiber structure.
摘要:
The specification describes multimode optical fibers with specific design parameters, i.e., controlled refractive index design ratios and dimensions, which render the optical fibers largely immune to moderately severe bends. The modal structure in the optical fibers is also largely unaffected by bending, thus leaving the optical fiber bandwidth essentially unimpaired. Bend performance results were established by DMD measurements of fibers wound on mandrels vs. measurements of fibers with no severe bends.
摘要:
The specification describes an optical fiber device wherein a lower order mode (LOM) is converted to an higher order mode (HOM) prior to entering the gain section. The gain section is a few mode fiber that supports the HOM. The output from the gain section, i.e. the HOM, may be utilized as is, or converted back to the LOM. With suitable design of the few mode fiber in the gain section of the device, the effective area, Aeff, may be greater than 1600 µm 2 . The large mode separation in the gain section reduces mode coupling, allowing greater design freedom and reducing the bend sensitivity of the optical fiber. The innder cladding and trench regions govern the properties of the higher order mode (HOM).
摘要:
La fibre est adaptée à la compensation de la dispersion chromatique et de la pente de dispersion chromatique d'une fibre optique à dispersion chromatique négative. Elle présente, dans un mode de propagation autre que le mode fondamental une dispersion chromatique positive et une pente de dispersion chromatique négative. La fibre peut être utilisée dans des modules de dispersion de compensation ou comme fibre de ligne, dans des systèmes de transmission utilisant de la fibre de ligne à dispersion chromatique négative.