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公开(公告)号：CA2031389A1
公开(公告)日：1991-07-05
申请号：CA2031389
申请日：1990-12-03
Applicant: CORNING INC
Inventor： NOLAN DANIEL A , WILLIAMS GREGORY E
Abstract: of The Disclosure An overclad fiber optic coupler is formed from a coupler preform including a glass tube having a longitudinal aperture. The aperture is formed of a plurality of similarly shaped side walls, each of which includes a longitudinally extending, inwardly projecting protrusion means. The region between each two adjacent protrusion means constitutes a corner region. Disposed within the aperture are at least a portion of each of a plurality of glass optical fibers, one fiber being situated in each corner region. The midregion of the tube is collapsed onto the fibers, the protrusion means maintaining the fibers in their relative positions. At least a portion of the midregion is stretched to reduce the diameter thereof.
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公开(公告)号：AU5439200A
公开(公告)日：2000-11-10
申请号：AU5439200
申请日：2000-04-07
Applicant: CORNING INC
Inventor： MARRO MARLENE A , SCHMITT WILLIAM E , SUMMA MARK A , WILLIAMS GREGORY E
Abstract: An apparatus for measuring polarization dependent loss is disclosed featuring several fiber optic couplers combined in tandem and oriented such that the PDL noise of the measurement system is reduced to a negligible level. By matching the PDLs of the couplers and vectorally subtracting opposite phases of polarization, the PDL of the measurement system is virtually eliminated. Thus, the PDL noise floor is lowered to near zero and the PDL of the optical device-under-test (DUT) can be accurately measured. The system is relatively inexpensive to implement and offers needed versatility because it measures the PDL of optical devices that operate in a reflection mode or in a forward transmission mode. Thus, it provides one PDL measurement solution for both types of devices.
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Patent Agency Ranking
公开(公告)号：DE60138698D1
公开(公告)日：2009-06-25
申请号：DE60138698
申请日：2001-03-19
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A , HIMMELREICH JOHN , UKRAINCZYK LJERKA , WILLIAMS GREGORY E
Abstract: A spherical lens formed by fusing a generally homogenous glass lens blank to the distal end of an optical fiber, heating and tensioning the lens blank to separate it in two segments with the segment attached to the optical fiber defining a tapered end, and heating the lens blank above its softening point so that the spherical lens forms. The lens blank is fabricated from a 4 weight percent borosilicate glass having a softening point less than that of the core of the optical fiber. The lens member defines a throat region adjacent the optical fiber whose cross-sectional dimension is substantially greater than the diameter of the optical fiber, but substantially less than the diameter of the spherical lens.
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公开(公告)号：CA2403387A1
公开(公告)日：2001-09-27
申请号：CA2403387
申请日：2001-03-19
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A , HIMMELREICH JOHN , UKRAINCZYK LJERKA , WILLIAMS GREGORY E
Abstract: A spherical lens formed by fusing a generally homogenous glass lens blank to the distal end of an optical fiber, heating and tensioning the lens blank to separate it in two segments with the segment attached to the optical fiber defining a tapered end, and heating the lens blank above its softening point so that the spherical lens forms. The lens blank is fabricated from a 4 weight percent borosilicate glass having a softening point less than that of the core of the optical fiber. The lens member defines a throat region adjacent the optical fiber whose cross-sectional dimension is substantially greater than the diameter of the optical fiber, but substantially less than the diameter of the spherical lens.
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公开(公告)号：AU4756301A
公开(公告)日：2001-10-03
申请号：AU4756301
申请日：2001-03-19
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A , HIMMELREICH JOHN , UKRAINCZYK LJERKA , WILLIAMS GREGORY E
Abstract: A spherical lens formed by fusing a generally homogenous glass lens blank to the distal end of an optical fiber, heating and tensioning the lens blank to separate it in two segments with the segment attached to the optical fiber defining a tapered end, and heating the lens blank above its softening point so that the spherical lens forms. The lens blank is fabricated from a 4 weight percent borosilicate glass having a softening point less than that of the core of the optical fiber. The lens member defines a throat region adjacent the optical fiber whose cross-sectional dimension is substantially greater than the diameter of the optical fiber, but substantially less than the diameter of the spherical lens.
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公开(公告)号：CA2368255A1
公开(公告)日：2000-11-02
申请号：CA2368255
申请日：2000-04-07
Applicant: CORNING INC
Inventor： SUMMA MARK A , WILLIAMS GREGORY E , SCHMITT WILLIAM E , MARRO MARLENE A
Abstract: An apparatus for measuring polarization dependent loss is disclosed featurin g several fiber optic couplers combined in tandem and oriented such that the P DL noise of the measurement system is reduced to a negligible level. By matchin g the PDLs of the couplers and vectorally subtracting opposite phases of polarization, the PDL of the measurement system is virtually eliminated. Thu s, the PDL noise floor is lowered to near zero and the PDL of the optical devic e- under-test (DUT) can be accurately measured. The system is relatively inexpensive to implement and offers needed versatility because it measures t he PDL of optical devices that operate in a reflection mode or in a forward transmission mode. Thus, it provides one PDL measurement solution for both types of devices.
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7.发明公开OPTICAL WAVEGUIDE LENS AND METHOD OF FABRICATION 有权OPTISCHE WELLENLEITERLINSE UND HERSTELLUNGSVERFAHREN
公开(公告)号：EP1285294A4
公开(公告)日：2005-11-09
申请号：EP01920518
申请日：2001-03-19
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A , HIMMELREICH JOHN , UKRAINCZYK LJERKA , WILLIAMS GREGORY E
CPC classification number: G02B6/32 , G02B6/2552 , G02B6/262
Abstract: A spherical lens formed by fusing a generally homogenous glass lens blank to the distal end of an optical fiber, heating and tensioning the lens blank to separate it in two segments with the segment attached to the optical fiber defining a tapered end, and heating the lens blank above its softening point so that the spherical lens forms. The lens blank is fabricated from a 4 weight percent borosilicate glass having a softening point less than that of the core of the optical fiber. The lens member defines a throat region adjacent the optical fiber whose cross-sectional dimension is substantially greater than the diameter of the optical fiber, but substantially less than the diameter of the spherical lens.
Abstract translation: 将通常均匀的玻璃透镜毛坯熔合到光纤的远端而形成的球面透镜，加热和张紧透镜毛坯以将其分离成两段，其中连接到光纤的段限定锥形端，并加热透镜 空白高于其软化点，从而形成球面透镜。 透镜坯料由软化点小于光纤纤芯的4重量％硼硅酸盐玻璃制成。 透镜构件限定邻近光纤的喉部区域，其横截面尺寸基本上大于光纤的直径，但是基本上小于球面透镜的直径。
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