公开(公告)号：JP2001027712A

公开(公告)日：2001-01-30

申请号：JP2000179739

申请日：2000-06-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BLYLER LEE L JR ,  SHEVCHUK GEORGE JOHN ,  WHITE WHITNEY

IPC: G02B6/24 ,  B26D7/08 ,  G02B6/00 ,  G02B6/25

Abstract: PROBLEM TO BE SOLVED: To provide the method capable of connecting a plastic made optical fiber without being polished in a dry state. SOLUTION: An optical fiber is cut while being compressed in the axial direction (while pushing the optical fiber 21 with clamps 22, 23). When the optical fiber is cleaved (cleavage), it is pulled with a high strain rate to be broken after it is notched. The strain rate is set so that strain exists in the elastic zone until breaking or during breaking, that is, the optical fiber is subjected to such a strain rate that the optical fiber has no ductility and shows brittleness during from strain until breaking. The brittle characteristic is required for the smooth trailing end surface for promoting a low loss in unpolishing connection in a dry state.

公开(公告)号：JP2000147294A

公开(公告)日：2000-05-26

申请号：JP32187799

申请日：1999-11-12

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GIARETTA GIORGIO ,  WHITE WHITNEY

IPC: G02B6/32 ,  G02B6/02 ,  G02B6/34 ,  G02B6/42 ,  H04B10/02 ,  H04B10/12 ,  H04B10/135 ,  H04B10/14 ,  H04B10/18 ,  H04B10/2581 ,  G02B6/16

Abstract: PROBLEM TO BE SOLVED: To enable the transmission of light signals on a polymer fiber by coupling a light signal spot through a central region to the predetermined central region of the core region of the polymer fiber exhibiting a nearly flat delay characteristic. SOLUTION: A light signal source 101 is coupled through a lens 202 to the sweat spot 203 of the core 107a of the polymer fiber 107. For example, the sweat spot of the polymer fiber having the core of, for example, about 250 μm in diameter is about 120 μm and is, therefore, extremely larger than the core diameter of 50 μm of the SM fiber 104. The lens 202 is, therefore, relieved of the alignment and focusing to the PF fiber 107. The sweat spot of 120 μm extends to half the core diameter and, therefore, even if the light signal is offset somewhat (about 50 μm) from the center, the transmission capacity remains high. In such a case, the system may be used an avalanche photodiode detector(APD) having the embedment lenses as a lens 209 and a detector 211 in, for example, a signal receiver 210.

公开(公告)号：JP2001119353A

公开(公告)日：2001-04-27

申请号：JP2000277409

申请日：2000-09-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WHITE WHITNEY

IPC: G02B6/02 ,  H04B10/00 ,  H04B10/152 ,  H04B10/22 ,  H04B10/2581 ,  G02B6/16

Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber communication system such as an electric communication system and a data communication system. SOLUTION: A mode coupling plastic or glass optical fiber is used for transporting a light signal between a transmitter and a receiver in a communication system. For conquering the high attenuation characteristic of the mode coupling optical fiber incident power used for transmitting a signal on an optical link is normally higher than that used in a conventional compatible communication system depending on a standard signal mode or multimode glass optical fiber. For adapting to a larger incident power level, the communication system is designed with a receiver whose dynamic range is larger than that used in the conventional communication system. Since the mode coupling optical fiber has the diameter of about 50 to 62.5 microns or a larger one, a comparatively simple and inexpensive butt connecting the fiber with the other system constitution elements (the transmitter and the receiver, for example) can be used.

公开(公告)号：JP2001350065A

公开(公告)日：2001-12-21

申请号：JP2001105788

申请日：2001-04-04

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WELD JOHN DAVID ,  WHITE WHITNEY

IPC: G02B6/42 ,  H01L31/0232 ,  H01S5/022

Abstract: PROBLEM TO BE SOLVED: To provide an improved matching technique, which is suitable for imparting permissible characteristics to an optical fiber of 100 to 250 μm in the diameter of a core and is low in cost. SOLUTION: This optical system has a packaged active device, the optical fiber of 100 to 250 μm in the diameter of the core, optical fiber connector mounted at the end of the optical fiber and an adapter, having a first housing section for fixing the optical fiber connector and a second housing section for fixing the packaged active device. The end faces of the active device and the optical fiber are matched optically, and the outer side of the packaged active device and the second housing section are combined to impart passive type matching of the device inside the adapter.

公开(公告)号：AU5655300A

公开(公告)日：2001-03-15

申请号：AU5655300

申请日：2000-09-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WHITE WHITNEY

IPC: G02B6/02 ,  H04B10/00 ,  H04B10/152 ,  H04B10/22 ,  H04B10/2581 ,  H04B10/12

Abstract: Mode-coupled plastic or glass optical fibers are used in communications systems to carry optical signals between transmitters and receivers. In order to overcome the high attenuation characteristics of mode-coupled optical fibers, the launch power used to transmit signals over the optical links is higher than those typically used in comparable conventional communications systems that rely on standard single-mode or multimode glass optical fibers. In order to accommodate the larger launch power levels, the communications systems are designed with receivers having a larger dynamic range than those used in conventional communications systems. In addition, the mode-coupled optical fibers can have diameters on the order of 50-62.5 microns, or even larger, thereby enabling the use of relatively simple and inexpensive butt coupling between the fibers and other system components (e.g., transmitters and receivers).

公开(公告)号：CA2317381A1

公开(公告)日：2001-03-14

申请号：CA2317381

申请日：2000-09-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WHITE WHITNEY

IPC: G02B6/02 ,  H04B10/00 ,  H04B10/152 ,  H04B10/22 ,  H04B10/2581 ,  H04B10/12 ,  H04B10/18

Abstract: Mode-coupled plastic or glass optical fibers are used in communications systems to carry optical signals between transmitters and receivers. In order to overcome the high attenuation characteristics of mode-coupled optical fibers, the launch power used to transmit signals over the optical links is higher than those typically used in comparable conventional communications systems that rely on standard single-mode or multimode glass optical fibers. In orde r to accommodate the larger launch power levels, the communications systems are designed with receivers having a larger dynamic range than those used in conventional communications systems. In addition, the mode-coupled optical fibers can have diameters on the order of 50-62.5 microns, or even larger, thereby enabling the use of relatively simple and inexpensive butt coupling between the fibers and other system components (e.g., transmitters and receivers).

公开(公告)号：AU5830499A

公开(公告)日：2000-05-18

申请号：AU5830499

申请日：1999-11-05

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GIARETTA GEORGIO ,  WHITE WHITNEY

IPC: G02B6/32 ,  G02B6/02 ,  G02B6/34 ,  G02B6/42 ,  H04B10/02 ,  H04B10/12 ,  H04B10/135 ,  H04B10/14 ,  H04B10/18 ,  H04B10/2581 ,  C08J5/04

Abstract: We have determined that unlike the most multimode silica fiber, multimode polymer fiber often exhibits a delay characteristic that has a broad low dispersion region where propagation delay of spatially restricted optical pulses remains relatively constant. This low dispersion region is centered around the center axis of the fiber core as a function of launch position. By directing a transmitted optical pulse to this region, we have determined that optical pulse dispersion can be significantly reduced without the need for using the prior art technique of using a single mode fiber spliced in series with the multimode fiber to reduce dispersion. A polymer fiber based optical transmission system using this arrangement exhibits relaxed alignment tolerances between the optical source and polymer fiber, while reducing dispersion and increasing bandwidth-length product.

公开(公告)号：CA2282971A1

公开(公告)日：2000-05-12

申请号：CA2282971

申请日：1999-09-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： WHITE WHITNEY ,  GIARETTA GIORGIO

IPC: G02B6/32 ,  G02B6/02 ,  G02B6/34 ,  G02B6/42 ,  H04B10/02 ,  H04B10/12 ,  H04B10/135 ,  H04B10/14 ,  H04B10/18 ,  H04B10/2581

Abstract: We have determined that unlike the most multimode silica fiber, multimode polymer fiber often exhibits a delay characteristic that has a broad low dispersion region where propagation delay of spatially restricted optical pulses remains relatively constant. This low dispersion region is centered around the center axis of the fiber core as a function of launch position. By directing a transmitted optical pulse to this region, we have determined that optical pulse dispersion can be significantly reduced without the need for using the prior art technique of using a single mode fiber spliced in series with the multimode fiber to reduce dispersion. A polymer fiber based optical transmission system using this arrangement exhibits relaxed alignment tolerances between the optical source and polymer fiber, while reducing dispersion and increasing bandwidth-length product.

公开(公告)号：BR0002597A

公开(公告)日：2001-01-02

申请号：BR0002597

申请日：2000-06-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BLYLER LEE L JR ,  SHEVCHUK GEORGE JOHN ,  WHITE WHITNEY

IPC: G02B6/24 ,  B26D7/08 ,  G02B6/00 ,  G02B6/25 ,  G02B1/04

公开(公告)号：AU4083100A

公开(公告)日：2000-12-21

申请号：AU4083100

申请日：2000-06-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BLYLER LEE L ,  SHEVCHUK GEORGE JOHN ,  WHITE WHITNEY

IPC: G02B6/24 ,  B26D7/08 ,  G02B6/00 ,  G02B6/25 ,  B29C71/00