Disclosed is a novel central-tube cable with high-conductiv ity conductors. The novel central-
tube cable according to the present invention yields a fiber optic cable with a smaller …

(57) ABSTRACT A multimode optical fiber includes a central core and an outer cladding (eg,
an outer optical cladding). Typically, the opti cal fiber's central core is a depressed, central …

A multimode optical fiber includes a central core surrounded by an outer cladding. The
central core has a graded-index profile with respect to the outer cladding and an outer …

(74) Attorney, Agent, or Firm—Addition, Higgins & Pendleton, PA (57) ABSTRACT Disclosed
is a reduced-diameter optical fiber that employs a novel coating system. When combined …

In harsh and hazardous environments, the presence of elevated levels of hydrogen gas is
an indicator of chemical and/or radiological activity. The present hydrogen-sensing optical …

BACKGROUND Optical fibers may be used for communication of signals. Single-Mode Fiber
(SMF) may support extended propagation distances, but does not support multi-mode …

The invention relates to a multimode optical fiber having a refractive index profile,
comprising a light-guiding core surrounded by one or more cladding layers. The present …

BACKGROUND As compared with traditional wire-based networks, opti cal-fiber
communication networks are capable of transmit ting significantly more information at …