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公开(公告)号：DE69938444D1
公开(公告)日：2008-05-15
申请号：DE69938444
申请日：1999-09-14
Applicant: LUCENT TECHNOLOGIES INC
Abstract: An optical fiber grating device (10) including a length of optical fiber having a predetermined fundamental mode effective guide index and a longitudinally tapered region for accessing a fundamental mode of light. The tapered region has a grating (24) with a predetermined light spectral shaping property that shapes the light spectrum of the fundamental mode. A coating (26) surrounds the tapered region (18) of the fiber for modifying the fundamental mode effective guide index of the fiber in order to change the spectral shaping property of the grating.
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公开(公告)号：DE69937182D1
公开(公告)日：2007-11-08
申请号：DE69937182
申请日：1999-11-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ESPINDOLA ROLANDO PATRICIO , STRASSER THOMAS ANDREW , WAGENER JEFFERSON LYNN , WYSOCKI PAUL FRANCIS
Abstract: In accordance with the invention, a temperature-dependent rare earth doped waveguide optical amplifier is compensated by a temperature-dependent loss filter. The filter characteristics are designed to be temperature-dependent filters so that the gain characteristic of the amplifier is compensated over a practical operating temperature range. In essence, the amplifier comprises a length of optical waveguide for transmitting optical signals, a rare earth doped amplifying region in the waveguide for amplifying the transmitted optical signals, a pumping source for optically pumping the amplifying region, and a temperature-dependent loss filter. A typical design compensates an EFDA to a variation of less than 1 dB over a temperature range of -40 DEG C to 85 DEG C and a spectral range of at least 20 nm.
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13.发明专利
公开(公告)号：CA2295264A1
公开(公告)日：2000-07-26
申请号：CA2295264
申请日：2000-01-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： JIN SUNGHO , MAVOORI HAREESH , STRASSER THOMAS ANDREW , ROGERS JOHN A , ADAMS LAURA ELLEN , EGGLETON BENJAMIN JOHN , ESPINDOLA ROLANDO PATRICIO
IPC: G02B5/18 , G02B6/02 , G02B6/34 , G02B26/00 , G02F1/01 , H01S3/10 , H04B10/18 , G02B6/124 , H04J14/02
Abstract: A method for making a chirped grating device capable of a broad bandwith for optical communication systems is disclosed. An intrinsically-chirped optical grating is externally strained to alter the range of chirping. The external strain may be induced by a gradient-generating body bonded onto the length of the fiber grating that may be latchably strained so that the grating characteristics may be changed or tuned while avoiding use of a continuous power supply. Various optical networking applications using such dispersion compensating devices are also disclosed.
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公开(公告)号：DE69728729D1
公开(公告)日：2004-05-27
申请号：DE69728729
申请日：1997-09-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ATKINS ROBERT MICHAEL , SIMOFF DEBRA ANN , ESPINDOLA ROLANDO PATRICIO
Abstract: The method of making an optical fiber refractive index grating comprises writing the grating through the fiber coating. The method involves providing optical fiber of significantly higher photosensitivity than conventional fiber, such that the grating can be written before unacceptable darkening of the coating occurs. Such fiber is H2 and/or D2-loaded silica-based fiber having a Ge-doped core, the fiber selected to have a germanium-oxygen deficiency center content that provides the fiber with a photosensitivity that is at least twice as large as that of an otherwise identical, conventionally prepared, optical fiber. The fiber typically is drawn from a preform, at least a portion of which was exposed to a reducing atmosphere at an elevated temperature.
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公开(公告)号：DE60001239D1
公开(公告)日：2003-02-27
申请号：DE60001239
申请日：2000-02-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ESPINDOLA ROLANDO PATRICIO , STRASSER THOMAS ANDREW , WESTBROOK PAUL STEPHEN , WYSOCKI PAUL FRANCIS
Abstract: L-band EDFA (Er-doped fiber amplifier) characteristics are improved by provision of filter means in the C-band, the filter means having a figure of merit greater than 400dB.nm. The filter means can be discrete and/or distributed filter means. In preferred embodiments, two or more full C-band blazed fiber Bragg gratings are used.
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Patent Agency Ranking
公开(公告)号：DE69903703D1
公开(公告)日：2002-12-05
申请号：DE69903703
申请日：1999-08-31
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ANATOLIA ABRAMOV , EGGLETON BENJAMIN JOHN , ESPINDOLA ROLANDO PATRICIO , HALE ARTURO
IPC: H01S3/06 , G02B6/00 , G02B6/02 , G02B6/34 , G02F1/01 , H01S3/067 , H01S3/10 , H04B10/17 , H04B10/29 , G02B6/16
Abstract: In accordance with the invention, a reconfigurable optical fiber grating comprises an optical fiber grating with a temperature sensitive material surrounding the cladding region or incorporated into the cladding region. One or more heating elements are arranged to produce a a temperature gradient along the length of the grating and thereby chirp the grating. In a preferred embodiment, a long period fiber grating is surrounded by a material in which dn/dT is 10 times as large as that of glass and in which n is close to but lower than that of the glass. A temperature gradient along the length of the grating results in a broadening of the resonance.
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公开(公告)号：DE60037052D1
公开(公告)日：2007-12-27
申请号：DE60037052
申请日：2000-01-19
Applicant: LUCENT TECHNOLOGIES INC
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18.发明专利
公开(公告)号：CA2295264C
公开(公告)日：2005-05-10
申请号：CA2295264
申请日：2000-01-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ROGERS JOHN A , STRASSER THOMAS ANDREW , ESPINDOLA ROLANDO PATRICIO , JIN SUNGHO , MAVOORI HAREESH , EGGLETON BENJAMIN JOHN , ADAMS LAURA ELLEN
IPC: G02B5/18 , G02B6/02 , G02B6/34 , G02B26/00 , G02F1/01 , H01S3/10 , H04B10/18 , G02B6/124 , H04J14/02
Abstract: A method for making a chirped grating device capable of a broad bandwid th for optical communication systems is disclosed. An intrinsically-chirped optical grating is externally strained to alter the range of chirping. The external strain may be induced by a gradient-generating body bonded onto the length of the fiber grating that may be latchably strained so that the grating characteristics may be changed or tuned while avoiding use of a continuous power supply. Various optical networking applications using such dispersion compensating devices are also disclosed.
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公开(公告)号：DE60001239T2
公开(公告)日：2003-10-30
申请号：DE60001239
申请日：2000-02-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ESPINDOLA ROLANDO PATRICIO , STRASSER THOMAS ANDREW , WESTBROOK PAUL STEPHEN , WYSOCKI PAUL FRANCIS
Abstract: L-band EDFA (Er-doped fiber amplifier) characteristics are improved by provision of filter means in the C-band, the filter means having a figure of merit greater than 400dB.nm. The filter means can be discrete and/or distributed filter means. In preferred embodiments, two or more full C-band blazed fiber Bragg gratings are used.
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公开(公告)号：DE69903703T2
公开(公告)日：2003-06-26
申请号：DE69903703
申请日：1999-08-31
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ANATOLIA ABRAMOV , EGGLETON BENJAMIN JOHN , ESPINDOLA ROLANDO PATRICIO , HALE ARTURO
IPC: H01S3/06 , G02B6/00 , G02B6/02 , G02B6/34 , G02F1/01 , H01S3/067 , H01S3/10 , H04B10/17 , H04B10/29 , G02B6/16
Abstract: In accordance with the invention, a reconfigurable optical fiber grating comprises an optical fiber grating with a temperature sensitive material surrounding the cladding region or incorporated into the cladding region. One or more heating elements are arranged to produce a a temperature gradient along the length of the grating and thereby chirp the grating. In a preferred embodiment, a long period fiber grating is surrounded by a material in which dn/dT is 10 times as large as that of glass and in which n is close to but lower than that of the glass. A temperature gradient along the length of the grating results in a broadening of the resonance.
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