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公开(公告)号：JPH11153721A
公开(公告)日：1999-06-08
申请号：JP26218098
申请日：1998-09-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To rapidly form a reflection mirror at low cost by making a light beam incident on a cladding layer at least at one angle to a circuit and obtaining a deflection angle corresponding to a deflection surface. SOLUTION: A laser 130 makes the light beam 140 go in a direction to enter the specified area of the optical integrated circuit 150 near to the surface waveguide 155. The light beam 140 is made to go toward the area at the specified angle to a Y-axis extended perpendicularly to the surface of the circuit 150. The light beam 140 is made to go and enter the cladding 160 of quartz glass with sufficient energy within a specified wavelength range continuously for a time long enough to gasify the quartz glass in the area, and forms a groove extended passing through the waveguide 155 and angled at a specified angle. Thus, an edge surface where the groove angled at the specified angle is formed constitutes the deflection surface of the constitution of the reflection mirror.
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公开(公告)号：JPH1130759A
公开(公告)日：1999-02-02
申请号：JP15691598
申请日：1998-06-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To obtain a simple, inexpensive and mechanically stable optical fiber switch capable of multi-port switching by using two optical fiber structures that contain plural optical fibers fixed in the first and the second part of a cleaved substrate. SOLUTION: The switch 1 is fixed on a mounting bracket 10 and contains an integrated first fixed substrate 5. A second substrate 15 is stuck movably to the mouning bracket 10 so as to be moved in the X direction parallel to the fixed substrate 5. The substrates 5, 15 are provided with an essentially flat upper surface 7, 17, with are flush with each other. The optical fiber structure 35 containing an alley of optical fibers 37 is arranged on the flat surface 17 of the movable substrate 15. The corresponding optical fiber structure 40 containing an alley of optical fibers 42 is arranged on the flat surface 7 of the fixed substrate 5. The optical fibers 37, 42 carry optical signals for which the optical path is to be selected by the switch 1.
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公开(公告)号：JPH10319363A
公开(公告)日：1998-12-04
申请号：JP13570498
申请日：1998-05-18
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To modulate an optical signal by changing the power of elastic surface wave according to a 2nd signal to modulate a signal propagated to a single mode part for output from a multimode area, that is, the attenuated optical signal propagated in an even transmitting mode. SOLUTION: A multi-mode waveguide 15 is connected between a single mode input planer waveguide part 100 and an output planer waveguide part 110, and propagates the optical signal from the input part 100 to the output 110 in the 1st even transmitting mode through a multi-mode waveguide part 105. By turning the elastic surface wave to the waveguide 105, optical power is converted to an odd transmitting mode so as to attenuate the optical signal propagated in the even transmitting mode. Attenuating amount depends on the amplitude of the power of the elastic surface wave mutually acting with the waveguide 105. Therefore, by changing the amplitude of the 2nd signal, the power of the elastic surface wave is changed and the optical signal is modulated according to the 2nd signal.
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公开(公告)号：JPH1082920A
公开(公告)日：1998-03-31
申请号：JP22943797
申请日：1997-08-26
Applicant: LUCENT TECHNOLOGIES INC
Inventor： NARAYANAN CHELLAPPAN , PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To manufacture a filter in a compact size and to reduce the manufacturing cost, by composing the filter of a first and a third areas as a waveguide part in a single transmission mode and a second area as a waveguide part in a multiplex transmission mode. SOLUTION: A planar type waveguide 5 is arranged on silica glass 10 formed on a silicon substrate 15 and composed of first, second and third areas. The first and the third areas include a waveguide part in a single transmission mode and an optical signal is basically propagated in a single common transmission mode in this waveguide part. The second area includes a multiplex transmission mode or multiple waveguide part and an optical signal is basically propagated in a first transmission mode and a higher-order transmission mode. These waveguide structures are arranged between two planar type waveguides 5 not supporting the higher order mode, the unnecessary band of a wavelength of an optical signal propagating in the first transmission mode is transferred to the higher-order mode in the multiplex mode part.
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公开(公告)号：DE60100183T2
公开(公告)日：2004-03-11
申请号：DE60100183
申请日：2001-04-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN MELVIN , TYSON JOHN A
IPC: H04B10/10 , H04B10/118 , H04B10/22
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Patent Agency Ranking
公开(公告)号：DE69804065T2
公开(公告)日：2002-10-31
申请号：DE69804065
申请日：1998-09-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN MELVIN
Abstract: Planar waveguide turning mirrors in integrated optical circuits (150) are formed using at least one light beam (140) including a wavelength in a particular wavelength range that is absorbed by the cladding layer (160) of the circuit to vaporize a particular region of the corresponding cladding layer at the desired angle to form the recessed light deflector surface of the turning mirror. In addition, it is also possible to form the cladding layer on a substrate comprising a material that enables light wavelengths in the particular wavelength range to be substantially transmitted through the substrate to advantageously enable greater flexibility in the light beam energy and/or the time the beam is incident on the cladding layer during the vaporization process.
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公开(公告)号：CA2300353A1
公开(公告)日：2000-09-25
申请号：CA2300353
申请日：2000-03-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SZAJOWSKI PAUL F , NYKOLAK GERALD , PRESBY HERMAN MELVIN
IPC: H01L31/0232 , H01L31/12 , H01L33/00 , H04B10/10 , H04B10/118 , H04B10/22 , H04B10/06
Abstract: An optical receiving system includes a Fresnel lens optically coupled to a detector via a tapered concentrator. The Fresnel lens is adapted to receive an electromagnetic signal and has a Fresnel focal point. The tapered concentrator has a first end surface area larger than a second end surface area. The detector has a sensing surface area oriented to receive the electromagnetic signal emerging from the tapered concentrator.
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公开(公告)号：CA2298323A1
公开(公告)日：2000-09-04
申请号：CA2298323
申请日：2000-02-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN MELVIN , PICCIRILLI ALFONSO B
Abstract: A method of optical communication having improved security is described. The data content of an initially provided data signal is apportioned among two or more distinct optical wavelength channels. A transmitted signal spans these two or more channels. A respective portion of the data content of the transmitted signal is allocated to each of the optical wavelength channel. In certain embodiments of the invention, each such portion comprises data placed in the pertinent wavelength channel during assigned time windows.
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29.发明专利
公开(公告)号：CA2357918C
公开(公告)日：2005-08-09
申请号：CA2357918
申请日：2001-09-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN MELVIN , TYSON JOHN ANTHONY , AHRENS ROBERT G
IPC: G02B23/02 , G02B17/08 , G02B23/12 , H04B10/112 , H04B10/118 , H04B10/10 , H04B10/04 , H04B10/06
Abstract: A free space optical communication system is disclosed whereby the signal amplitude incident upon a receive optical fiber of a receive telescop e is varied by dithering either the light beam transmitted by a transmit telescop e or the receive optical fiber when a decrease in received signal amplitude is measured so as to effect the incidence of the maximum transmitted signal amplitude upon the receive optical fiber at the receive focal plane. In one embodiment, the transmit optical fiber is dithered in a pattern, causing the transmitted beam to oscillate in a corresponding pattern. In response, the received signal amplitude of the image on the focal plane of the receive telescope also oscillates in the same pattern. By comparing the phase of the received signal with the phase of the movement of the transmitted beam, the origin of the transmitted beam dithering pattern can be moved until the maximum amplitude of the transmitted beam is incident upon the receive optical fiber. In another embodiment, the receive optical fiber is dithered in a variable pattern to locate the point of maximum received signal amplitude. Using the aforementioned phase comparison technique, the receive optical fiber is moved progressively closer to the point of maximum amplitude of the received signal on the receive focal plane. In cases where atmospheric disturbances alter the path of the transmitted beam, the transmitted beam and the receive optical fiber may both be dithered to achieve coincidence between the point of maximum signal amplitude and the receive optical fiber.
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公开(公告)号：CA2382635A1
公开(公告)日：2002-12-29
申请号：CA2382635
申请日：2002-04-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： TYSON JOHN ANTHONY , PRESBY HERMAN MELVIN
Abstract: A free space optical communication system is disclosed whereby the optics of a transmit telescope are manipulated using adaptive optics to precompensate for wave front distortion of a light beam transmitted by a transmit telescope. Wave front distortion is manifested at the receive telescope as a change in at least one characteristic of the image of the received signal such as, for example, a reduction in the amplitude of the received signal. A mirror of the transmit telescope is deformed in such a wa y as to reduce the wave front distortion and correspondingly increase the resulting amplitude of the received signal.
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