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公开(公告)号：JP2000066044A
公开(公告)日：2000-03-03
申请号：JP22897799
申请日：1999-08-13
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN M , MARCUSE DIETRICH
Abstract: PROBLEM TO BE SOLVED: To make it possible to have the characteristic capable of exerting a desired influence on the propagation of a laser beam by simple manipulation by largely changing the refractive index of a polymer material dependently upon clad temp. SOLUTION: A doped silica core 105 is enclosed at the remaining surfaces exclusive of the boundary surface with a silica substrate 110 by a silica clad material 115 and in the section of a length L, a polymer clad material 120 encloses these remaining surfaces of the core 105 in place of the silica clad material 115. The polymer clad material 120 is brought into contact with the doped silica core 105 in such a manner and the refractive index of the polymer clad material 120 is controlled with respect to the refractive index of doped silica core 105, by which the propagation of the light passing the core 105 is manipulated in order to embody several benefits. The polymer clad material 120 varies largely in the refractive index of the polymer with a temp. change and on the other hand, the heat and light coefft. of the silica is lower than the same and has an opposite code.
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公开(公告)号：JP2000111961A
公开(公告)日：2000-04-21
申请号：JP28397099
申请日：1999-10-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN M
Abstract: PROBLEM TO BE SOLVED: To provide an optical structure which facilitates a changeover of optical signals between plural optical wave guides. SOLUTION: The optical switching device comprises a linear part 105 of a wave guide core, a lateral part 110 of the wave guide core extending from the linear part and a polymer region 120 located on the linear part. The polymer region 120 has its refractive index varying with surrounding temperature. Furthermore, the polymer region 120 forms a wall of polarization 125.
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公开(公告)号：JP2000066252A
公开(公告)日：2000-03-03
申请号：JP22812499
申请日：1999-08-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： PRESBY HERMAN M , MARCUSE DIETRICH
Abstract: PROBLEM TO BE SOLVED: To provide a material used for constituting an optical waveguide. SOLUTION: A Mach-Zehnder interferometer 100 which adopts the section of polymer cladding in one branch is provided. The refractive index of the polymer cladding 130 changes with temp. The temp. of the section of the polymer cladding is modulated so as to give rise to the change corresponding to the phase of the laser beam flowing through a waveguide core 110 limited by the polymer cladding 130 in order to induce the desired switching or modulation of the laser beam.
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公开(公告)号：JPH11153719A
公开(公告)日：1999-06-08
申请号：JP26218298
申请日：1998-09-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To provide an optical integrated circuit having a planar waveguide turning mirror. SOLUTION: The optical integrated circuit 100 having the tuning mirror formed by the end face of a planar waveguide 125 forms the deflection surface of the turning mirror. More specifically, the optical integrated circuit includes the planar waveguide formed within a clad layer and in such a case, the planar waveguide has a deflector end face 130 arranged adjacently to a region, such as a spacing. The refractive indices of the planar waveguide 125 and the region have a ratio not smaller than about 1.3 so as to induce desired refractive index discontinuity. The advantageous deflection of an optical signal is made possible by combining this refractive index discontinuity and the arrangement of the deflector end face 130 at an angle within a range of 24 to 67 deg. with the axis extending perpendicularly to the direction of the waveguide.
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公开(公告)号：JPH10319447A
公开(公告)日：1998-12-04
申请号：JP12064198
申请日：1998-04-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN MELVIN
IPC: G02F1/335
Abstract: PROBLEM TO BE SOLVED: To provide an optical circuit switch made of slica having a small-sized waveguide structure so as to facilitate the routing of optical signals using an acoustooptical effect. SOLUTION: When an elastic surface wave 125 is not generated, an optical signal from an input part 100 is propagated in an even transmission mode to a first output part 110 via a multimode part 105 by a coupler waveguide structure. However, when a SAW source turns the elastic surface wave to the multimode waveguide part 105 with a specific phase matching angle θ, the optical signal entering to the input part 100 is coupled from the first transmission mode to a second transmission mode in the multimode part 105 and as the result, this power is transferred in the second transmission mode. Then, the optical signal of the second transmission mode is received at the inside of a second output part 115.
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Patent Agency Ranking
公开(公告)号：JP2000151215A
公开(公告)日：2000-05-30
申请号：JP28395799
申请日：1999-10-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To obtain an optical attenuator with an optical structure that facilitates interruption and attenuation of an optical signal in an optical guide path by configuring the attenuator such that the attenuation of the optical signal transmitted through a core varies with a temperature of a polymer clad. SOLUTION: A thermal control element 505 is electrically coupled with both a thermoelectric heater 205 and a thermoelectric cooler 210, gives its output signal to the elements so as to apply/reduce heat to/from a polymer clad 420 as required. A photo-sensing element 510 or its equivalent is optically connected to an output of the optical attenuator and electrically connected to the thermal control element 505. The photo-sensing element 510 generates a feedback signal fed to the thermal control element 505. The thermal control element 505 uses this feedback signal to maintain a temperature of the polymer clad 420 to be constant. An incident signal 515 through the core is attenuated by leakage to the polymer clad 420 according to this method and an output of an emitted optical signal 520 is reduced.
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公开(公告)号：JPH10170766A
公开(公告)日：1998-06-26
申请号：JP32174997
申请日：1997-11-21
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To obtain a technique for measuring and setting relative component orientation and isolation distance by projecting a coherent light beam on one end of a gap formed between opposite surfaces of adjacent components. SOLUTION: The coherent light beam 25 is projected on one end of the gap 60 formed between the opposite surfaces 52, 57 of the adjacent components 50, 55. This light beam is projected so that corresponding light pattern is projected from the other end of the gap 60. Thus, the constitution of the light in the obtained pattern shows the relative orientation of respective opposite surfaces 52, 57 and the distance between them. Its projection pattern is used as a feedback signal for adjusting for alone deciding the relative positions between the adjacent components 50, 55, or attaining both or one side of required relative orientation and isolation distance between these components 50, 55.
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公开(公告)号：JP2000111964A
公开(公告)日：2000-04-21
申请号：JP28387199
申请日：1999-10-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN MELVIN
Abstract: PROBLEM TO BE SOLVED: To facilitate the switching of the light signal within optical waveguides by executing the transfer of the light signal from one of the two waveguides to the waveguides facing each other by controlling the temperature of a polymer material and controlling the refractive index of the polymer material. SOLUTION: An optical switching system 100 includes a transfer region and the first and second waveguide cores 110 and 115 are arranged therein in parallel in proximity to each over an identifiable length. In the transfer region, the respective waveguide cores 110 and 115 come into contact with a polymer clad 125. The polymer clad 125 has a refractive index np which changes with its temperature. The polymer clad material 125 comes into contact with the first and second waveguide cores 110 and 115 and the propagation of the light radiation through the first and second waveguide cores 110 and 115 is manipulated by controlling the refractive index of the polymer clad material 125 with respect to the refractive index nWC of the first and second waveguide cores 110 and 115, by which the light radiation is transferred from the first waveguide core 110 to the second waveguide core 115 or vice versa.
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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：DE69800016D1
公开(公告)日：1999-09-30
申请号：DE69800016
申请日：1998-04-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： MARCUSE DIETRICH , PRESBY HERMAN MELVIN
IPC: G02F1/335
Abstract: An acousto-optic silica optical circuit switch that selectively routes signals to one of two outputs includes a surface-acoustic-wave source (5) and a coupler waveguide structure formed within silica glass. The waveguide structure includes a single mode input section (100) connected to a multimode section connected to first and second single mode output sections (110,115). The first output section (105) has a structure capable of accepting power from an optical signal propagating in a first transmission mode of the multimode section, and the second output section has a structure capable of accepting power from an optical signal propagating in a second transmission mode in said multimode section. In operation, RF excitation is selectively provided to the SAW source to selectively cause coupling of the first and second transmission modes in the multimode section. As a consequence, an optical signal launched in the input section propagates through the multimode section to the first output section in the first transmission mode of the waveguide structure, or alternatively, such launched optical signal is coupled to the second transmission mode in the multimode section such that its power is transferred to the second transmission mode to propagate into the second output section.
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