The apparatus includes a core (12) surrounded by a depressed cladding (16), which itself is surrounded by a secondary cladding (18).

The optical fiber comprises a central core, an optical cladding, and a jacket.

The optical fiber is provided with a center core (11), an optical clad (12) for surrounding the center core and a jacket (13) for surrounding the optical clad.

The fiber optic cable also includes a jacket that surrounds the optical fiber.

A second cladding optical fiber is coupled to the first cladding optical fiber.

CT

cladding surface tolerance

The jacket pressing member presses the jacket of the optical cord against the second housing.

The optical fiber includes both a core and a cladding.

An optical-fiber cable that has the following: an optical fiber; and a jacket layer that is provided around said optical fiber and comprises at least an inner jacket layer and an outer jacket layer.

An optical fiber (1) comprises a core (11), a first clad (12), a second clad (13), and a third clad (14).

The optical coupling structure is provided with a core, a first cladding, and a second cladding.

The catheter assembly includes an outer tubular sheath (25), an optical fiber (27) extending through the sheath, and a fiber guide (41) for holding the fiber within the sheath.

A strain relief boot and an optical connector assembly includes an optical connector having a cable with a power transmitting optical fiber and a boot.

The invention concerns a cladding-pumped optical fibre comprising: a core with optical index n1, around the core, a first cladding with index n2 less than n1, around the first cladding, a second cladding with index n3 less than n2.