摘要:
A redundant length treatment mechanism for an optical fiber (2) which is stored in an optical cable (5) and has one end connected to an optical connector (6), includes a storage case (1) in which a redundant part of the optical fiber exposed from the optical cable is stored while wound up in a loop form (L), a bent form or an S-shape form, the storage case having a draw-out portion (1a) through which one end portion of the looped optical fiber (2) is drawn out, and curvature restricting means comprising a pair of stoppers (3, 4) secured to the optical fiber for restricting radius of curvature of the optical fiber sotred in a loop form in the storage case.
摘要:
A method and apparatus for installing and recovering transmission cable. The apparatus called a termination box (1) has a stationary winding barrel (2) having a central axis, and a transmission cable guide (10) rotatably coupled to the stationary winding barrel for guiding a transmission cable (5) onto and from the stationary winding barrel (2) by being rotated around the central axis. Various methods show the step for winding and unwinding transmission cable from the termination box; as well as, use of the termination box in conjunction with a strength wire to install transmission cables between a transmission supply point and a transmission receiving point or points.
摘要:
A method and apparatus for installing and recovering transmission cable. The apparatus called a termination box (1) has a stationary winding barrel (2) having a central axis, and a transmission cable guide (10) rotatably coupled to the stationary winding barrel for guiding a transmission cable (5) onto and from the stationary winding barrel (2) by being rotated around the central axis. Various methods show the step for winding and unwinding transmission cable from the termination box; as well as, use of the termination box in conjunction with a strength wire to install transmission cables between a transmission supply point and a transmission receiving point or points.
摘要:
There is disclosed an optical waveguide comprising a core portion made of a light propagating material and a cladding portion, a first dopant and a second dopant being induced into said core portion, the first dopant having a function of increasing a refractive index of the light propagating material and having a first thermal diffusion coefficient to said light propagating material, the second dopant having a function of decreasing the refractive index of said light propagating material and having a second thermal diffusion coefficient to the light propagating material larger than the first thermal diffusion coefficient under a predetermined temperature.
摘要:
A redundant length treatment mechanism for an optical fiber (2) which is stored in an optical cable (5) and has one end connected to an optical connector (6), includes a storage case (1) in which a redundant part of the optical fiber exposed from the optical cable is stored while wound up in a loop form (L), a bent form or an S-shape form, the storage case having a draw-out portion (1a) through which one end portion of the looped optical fiber (2) is drawn out, and curvature restricting means comprising a pair of stoppers (3, 4) secured to the optical fiber for restricting radius of curvature of the optical fiber sotred in a loop form in the storage case.
摘要:
A light transmitting optical fiber having at least one coating layer of an ultraviolet curing resin on an outer surface of the fiber, in which the ultraviolet curing resin used in an outermost layer has a Young's modulus of at least 100 kg/mm² and an elongation of at least 30 %.
摘要:
A coated glass fiber for light transmission consisting of a glass fiber for light transmission and at least one coating layer made of a UV-curing resin, wherein an outermost layer of the coating layer is made of a UV-curing resin having a Young's modulus of at least 100 kg/mm² and a change of a cure shrinkage degree of 1 % or less after a Young's modulus reaches one tenth of an end Young's modulus, which has good lateral pressure characteristics and low transmission loss.
摘要翻译:一种用于透光的涂覆玻璃纤维,由用于透光的玻璃纤维和由UV固化树脂制成的至少一个涂层组成,其中涂层的最外层由具有杨氏模量的UV固化树脂制成 至少100kg / mm 2,并且在杨氏模量达到端部杨氏模量的十分之一之后,固化收缩率的变化为1%以下,具有良好的横向压力特性和低的传输损耗。