WO2009029620A1 - Système et procédé pour régler un coupleur de fibre - Google Patents

Système et procédé pour régler un coupleur de fibre Download PDF

Info

Publication number
WO2009029620A1
WO2009029620A1 PCT/US2008/074323 US2008074323W WO2009029620A1 WO 2009029620 A1 WO2009029620 A1 WO 2009029620A1 US 2008074323 W US2008074323 W US 2008074323W WO 2009029620 A1 WO2009029620 A1 WO 2009029620A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
actuators
actuator
light
counter
Prior art date
Application number
PCT/US2008/074323
Other languages
English (en)
Inventor
Kaushal Verma
David Walker
Original Assignee
Ge Healthcare Bio-Sciences Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ge Healthcare Bio-Sciences Corp. filed Critical Ge Healthcare Bio-Sciences Corp.
Publication of WO2009029620A1 publication Critical patent/WO2009029620A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3648—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures
    • G02B6/3656—Supporting carriers of a microbench type, i.e. with micromachined additional mechanical structures the additional structures being micropositioning, with microactuating elements for fine adjustment, or restricting movement, into two dimensions, e.g. cantilevers, beams, tongues or bridges with associated MEMs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
    • G02B6/3644—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the coupling means being through-holes or wall apertures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
    • G02B6/4225—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements by a direct measurement of the degree of coupling, e.g. the amount of light power coupled to the fibre or the opto-electronic element
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
    • G02B6/4227—Active alignment methods, e.g. procedures and algorithms

Definitions

  • This invention relates to a system and method for adjusting a fiber coupler.
  • the microscope may be a conventional wide-field, fluorescent or confocal microscope.
  • the optical configuration of such a microscope typically includes a light source, illumination optics, objective lens, sample holder, imaging optics and a detector. Light from the light source illuminates the region of interest on the sample after propagating through the illumination optics and the objective lens.
  • Microscope objective forms a magnified image of the object that can be observed via an eyepiece, or in case of a digital microscope, the magnified image is captured by the detector and sent to a computer for live observation, data storage, and further analysis.
  • an opto-mechanical component known as a "fiber coupler” is needed to align the fiber to laser beam for maximum light coupling.
  • fiber couplers require physical adjustment of alignment screws by a user to achieve the optimum alignment, where the regions of interest of the sample are properly illuminated. These screws need to be locked to maintain the coupling over time and varying operation conditions.
  • the present invention has been accomplished in view of the above-mentioned technical background, and it is an object of the present invention to provide a system and method for adjusting a fiber coupler.
  • a system for optimizing a fiber coupler is disclosed.
  • An alignment base is configured to receive a light from a light source and pass it to the fiber mount, where the alignment base includes a plurality of actuators and a plurality of counter- force mechanisms.
  • a fiber mount is adjacent to the alignment base, where the fiber mount is configured to receive the light source from the alignment base, where the fiber mount includes a plurality of actuator connections and a plurality counter- force mechanism connections where the plurality of actuator connections are configured to be engaged with the plurality of actuators and the plurality of counter- force mechanisms are configured to be engaged with the plurality of counter- force mechanism connections.
  • a pigtailed fiber is coupled to the fiber mount, which contains a focusing lens in front of a fiber tip.
  • the pigtailed fiber is configured to receive the light from the light source and focus the light from the light source.
  • a controller is coupled to the plurality of actuators, where the controller is configured to move the plurality of actuators causing the fiber mount to move in a plurality of directions, wherein the focused light is adjusted to fall directly onto the fiber tip.
  • an imaging system in another preferred embodiment, includes a laser compartment, where the laser compartment comprises a plurality of laser modules each containing a fiber coupler system.
  • the fiber coupler system comprises: an alignment base is configured to receive a light from a light source and pass it to the fiber mount, where the alignment base includes a plurality of actuators and a plurality of counter- force mechanisms.
  • a fiber mount is adjacent to the alignment base, where the fiber mount is configured to receive the light source from the alignment base, where the fiber mount includes a plurality of actuator connections and a plurality of counter- force mechanism connections where the plurality of actuator connections are configured to be engaged with the plurality of actuators and the plurality of counter- force mechanisms are configured to be engaged with the plurality of counter- force mechanism connections.
  • a pigtailed fiber is coupled to the fiber mount, which contains a focusing lens in front of a fiber tip.
  • the pigtailed fiber is configured to receive the light from the light source and focus the light on the fiber tip.
  • a controller is coupled to the plurality of actuators, where the controller is configured to move the plurality of actuators causing the fiber mount to move in a plurality of directions, wherein the focused light is adjusted to fall directly onto the fiber tip.
  • the fiber coupler is coupled to an imaging instrument.
  • a method for controlling the fiber coupler system is disclosed.
  • the light energy emanating from an output end of a fiber is measured.
  • a controller is provided to move at least one actuator of a plurality of actuators to an entire range having a plurality of steps and recording a light intensity at each of the plurality of steps in the range.
  • a position of at least one step in the plurality of steps of the entire range that has a highest light intensity is identified.
  • the controller is also provided to position the at least one actuator of the plurality of actuators in the step that has the highest light intensity and the highest light intensity of the at least one actuator of the plurality of actuators is recorded. There is a determination if the light energy emanating from the output end of the fiber is equivalent to the highest light intensity of the at least one actuator of the plurality of actuators.
  • FIG. 1 illustrates an imaging system in accordance with the invention
  • FIG. 2 is a schematic diagram of a fiber coupler system of FIG. 1 in accordance with the invention
  • FIG. 3 A is a front view of a pigtailed fiber of FIG. 1 in accordance with the invention
  • FIG. 3B is a pigtailed fiber of the fiber coupler system of FIG. 1 in accordance with the invention
  • FIG. 4A shows a front view of a fiber mount of the fiber coupler system of FIG. 1 in accordance with the invention
  • FIG. 4B shows a side-view of a fiber mount of the fiber coupler system of FIG. 1 in accordance with the invention
  • FIG. 4C shows a top view of a fiber mount of the fiber coupler system of FIG. 1 in accordance with the invention
  • FIG. 5 shows a front view of an alignment base of the fiber coupler system of FIG. 2 in accordance with the invention
  • FIG. 6 is a flow-chart that illustrates how the fiber coupler is employed within the imaging system of FIG. 1; and FIG. 7 is a schematic diagram of another embodiment of fiber coupler system of
  • FIG. 1 in accordance with the invention.
  • FIG. 1 illustrates an imaging system.
  • An imaging system 100 includes an imaging instrument 101 connected to a laser compartment 111. Imaging instrument 101 or microscope system has been depicted with only the essential components: optical engine 103, sample positioning stage 105, a sample plate 107, a sample 107a and an optional computer 117 highlighted.
  • Computer 117 includes the typical components associated with a typical computer, such as a processor, input/output controller, memory, video adaptor, display, input device (keyboard, mouse, pointing device) or memory that is a mass storage device.
  • the mass storage device includes: 1. a hard disk drive component (not shown) for reading from and writing to a hard disk and a hard disk drive interface (not shown), 2.
  • Computer 117 may be a personal digital assistant (PDA), laptop computer, notebook computer, mobile telephone, hard-drive based device or any device that can receive, send and store information.
  • PDA personal digital assistant
  • the aforementioned drives and their associated computer readable media provide non- volatile storage of computer-readable instructions, data structures, program modules and other data for the computer 117.
  • the aforementioned drives include the technical effect of having an algorithm or software for analyzing the light energy level at an output end 119 of the fiber bundle 109, determining if the fiber couplers 113a and 115a are optimally positioned, means for correcting the position of fiber couplers 113a and 115a, which will be further described in the flow chart of FIG. 6.
  • an algorithm or software for analyzing the light energy level at an output end 119 of the fiber bundle 109 determining if the fiber couplers 113a and 115a are optimally positioned, means for correcting the position of fiber couplers 113a and 115a, which will be further described in the flow chart of FIG. 6.
  • the fiber coupler adjuster system GUI is a specially programmed GUI that has some of the same functionality as a typical GUI, which is a software program designed to allow a computer user to interact easily with the computer 117.
  • the fiber coupler adjuster system GUI includes a screen shot that displays the energy level emanating from the output end 109b of the fiber bundle 109 and the relevant light intensity levels at actuators 203a, 203b, 203c and 203d (FIG.2).
  • the fiber coupler adjuster system GUI works with a pointing device (mouse, joystick etc) connected to the computer 117 to allow the user to adjust the fiber couplers 113a and 115a as discussed in the flow chart of FIG. 6.
  • a pointing device mouse, joystick etc
  • the block diagram of the imaging instrument 101 describes all microscopes, such as conventional wide-field microscopes, fluorescent microscopes, traditional confocal microscopes, line scanning confocal microscopes but it is not limited to only these types of microscopes. These types of microscopes may be augmented with automation equipment to serve different applications, such as high-throughput screening or high content screening. However, they are not precluded from the scope of this invention.
  • the imaging system 100 may also be the INCeIl Analyzers 1000 or 3000 manufactured by GE Healthcare in Piscataway, NJ.
  • Imaging instrument 101 requires a light source or laser beam 221 to illuminate a sample 107a on the sample plate 107 under investigation and to excite the fluorescence material embedded in the sample 107a.
  • Sample plate 107 may be referred to as a typical microtiter plate, a microscope slide, a chip, a plate of glass, a Petri dish, plastic, or silicon or any type of typical holder.
  • the laser compartment 111 utilizes a bank of lasers as a light source.
  • the light source may be a light emitting diode, laser, plurality of lasers or any type of light source known to those of ordinary skill in the art that can be utilized in a high throughput screening device and/or a high content screening device.
  • Laser module 113 includes a fiber coupler system 113a, a laser head 113b and a laser controller 113c.
  • the laser module 115 includes a fiber coupler system 115a, a laser head 115b and a laser controller 115c. Even though only 2 fiber coupler systems 113a and 115a are used in this invention, there may be 3 to 100 or more couplers utilized in this invention. Many laser modules can be assembled to form a "laser compartment,” but only two laser modules 113 and 115 are shown in Fig. 1 for simplicity.
  • the light emitted from the laser heads 113b and 115b are coupled into two separate fibers 109a and 109b that converge into a fiber bundle 109, where the input end of the fibers 109a and 109b are inserted into respective fiber couplers 115a and 113a.
  • An output end 119 or output of the fiber bundle 109 is connected to the optical engine 103. It is important to make use of an appropriate fiber coupler, such as fiber coupler systems 115a and 113a, which have appropriate adjustment features.
  • the adjustment features are used to position the input ends of the fibers 109a and 109b such that the maximum amount of laser light is transferred into the fibers. A simple mount with no adjustment capability will render the instrument unusable.
  • Fibers connected to multiple laser modules are collected together to form a "fiber bundle" 109.
  • the output end of the fiber bundle 109 is connected to an appropriate location of the imaging system 101 within the optical engine 103.
  • Light emanating from the output end of the fiber bundle 109 propagates through a series of optical components to illuminate the sample 107a contained on the sample plate 107.
  • An appropriate section of the sample plate 107 can be positioned for imaging by employing the sample positioning stage 105.
  • FIG. 2 is a schematic diagram of a fiber coupler system 113a or 115a of FIG. 1.
  • This fiber coupler system includes fiber couplers or fiber optic couplers either split optical signals into multiple paths or combine multiple signals on one path.
  • Optical signals are more complex than electrical signals, making optical couplers trickier to design than their electrical counterparts.
  • Typical fiber couplers are manufactured by companies such as OZ Optics, Point Source, Toptica, Optics for Research and many other companies.
  • the fiber coupler system 200 includes an alignment base
  • alignment base 201 includes: a first actuator 203a, a second actuator 203b, a third actuator 203c, and a fourth actuator 203d. Some type of actuators may require a counter- force mechanism. Thus, the alignment base 201 may also include a first counter-force mechanism 205a, a second counter-force mechanism 205b, a third counter- force mechanism 205 c, a fourth counter-force mechanism 205 d and an opening
  • the opening 202 has a diameter in the range of. 2 to 10mm or any diameter that is suitable for the laser beam to pass through unobstructed.
  • Counter- force mechanisms 205a, 205b, 205c and 205d may also be referred to as extension springs.
  • the alignment base 201 may be made of any type of metal or plastic.
  • the metal may be aluminum, stainless steel or any type of metal used for a typical alignment base 201.
  • the plastic may be polypropylene, nylon, DELRIN® (manufactured by E.I. du Pont de Nemours and Company located in Wilmington, DE) or any typical plastic used for an alignment base 201.
  • First actuator 203a, second actuator 203b, third actuator 203c and fourth actuator 203d may be a voice-coil actuator, solenoid, stepper motor or any other type of electromagnetic actuator.
  • the controller 501 receives instructions to move one of the four actuators 203a, 203b, 203c and 203d forward or backward from the computer 117. Movement of these actuators moves the fiber mount, which results in adjustment of orientation of the axis 217 (see FIG. 2) of the pigtail end of the fiber.
  • the laser beam 221 may be misaligned, which may be due to tolerance stack up from the fiber coupler machining, fiber polishing, fiber diameter variations, etc, then the actuators are needed to adjust the fiber mount.
  • the axis 217 must coincide with laser beam 221.
  • the orientation of axis 217 can be different from laser beam 221 along four degrees of freedom: (1) linear shift along x-axis, (2) linear shift along y-axis, (3) rotational shift about x-axis and (4) rotational shift about y-axis.
  • Actuator 203a adjusts the linear shift along y-axis
  • actuator 203b adjusts the rotational shift along x-axis
  • actuator 203 c adjusts the rotational shift along y-axis
  • actuator 203 d adjusts the linear shift along x-axis.
  • the range of adjustment for linear shift along x and y-axis is in a range of 0.1mm to 10mm.
  • the range of adjustment for rotational shift about x and y-axis is in a range of 0.1° to 10°.
  • Controller 501 is connected by a wire or wirelessly to the computer 117, which provides a GUI for fiber coupler system adjuster to adjust the fiber couplers 113a and 115a. Even though only the first actuator 203a, second actuator 203b, third actuator 203c and fourth actuator 203 d are shown here there can be any range of actuators utilized, such as 4 to 100 actuators or more depending on the alignment base 201 and the user's need.
  • Counter-force mechanisms 205a, 205b, 205c and 205d are utilized when the corresponding actuator does not provide a pure linear motion or it provides only forward motion. These mechanisms may also provide physical connection between the fiber mount 207 and the alignment base 201. In FIG. 2, the fiber mount 207 is directly adjacent to the alignment base 201, where the actuators 203a, 203b, 203c and 203d are engaged with actuator connections 401a, 401b, 401c and 40 Id. Counter-force mechanisms 205a, 205b, 205c and 205d are engaged with counter-force mechanism connections 403a, 403b, 403c and 403d.
  • Fiber mount 207 also includes an opening 209 in the range of 0.1 to 2 cm or any diameter that enables it to receive the pigtail end of the fiber bundle 109. It also includes a pivot 219 for angular adjustment of fiber mount 207. Pivot 219 can be ball or cone made of metal or plastic.
  • FIGS. 4A, 4B and 4C Further details of fiber mount 207 are shown in FIGS. 4A, 4B and 4C.
  • FIG. 4A shows the front view of fiber mount 207 that includes a first actuator connection 401a, second actuator connection 401b, first counter-force mechanism connection 403a, and second counter-force mechanism connection 403b.
  • fiber mount 207 also includes third actuator connection 401c and third counter-force mechanism connection 403c.
  • fiber mount 207 also includes a fourth actuator connection 40 Id and a fourth counter-force mechanism connection 403d.
  • Counter-force mechanism connections 403a, 403b, 403c and 403d may also be referred to as spring mounts.
  • Actuator connections 401a, 401b, 401c and 40 Id may be referred to as permanent magnets associated with electromagnetic actuators. With the actuators 203a, 203b, 203c and 203d connected to their respective actuator connections 401a, 401b, 401c and 40 Id, actuator 203a and 203b with respective actuator connection 401a and 401b provide angular or tilt adjustment of fiber mount 207 whereas actuators 203 c and 203 d with respective actuator connections 401c and 40 Id provide linear or translational adjustment of the fiber mount 207.
  • the alignment base 201 includes actuator connections 401 a, 40 Ib, 401 c and 401 d and counter- force mechanism connections 403a, 403b, 403c and 403d instead of the actuators 203a, 203b, 203c and 203d and counter- force mechanisms 205a, 205b, 205c and 205d.
  • the fiber mount 207 includes actuators 203a, 203b, 203c and 203d and counter-force mechanisms 205a, 205b, 205c and 205d instead of actuator connections 401a, 401b, 401c and 40 Id and counter-force mechanism connections 403a, 403b, 403c and 403d.
  • This embodiment of alignment base 201 and fiber mount 207 works in the same manner as the alignment base 201 and the fiber mount 207 discussed previously.
  • FIG. 3A is a front view of pigtailed fiber 211.
  • FIG. 3B is a side view of a pigtailed fiber.
  • Pigtailed fiber 211 includes a standard focusing lens 301 and a fiber either 109a or 109b.
  • the focusing lens 301 focuses the incident light onto the fiber tip 302.
  • a typical fiber is made of two parts: (1) Fiber cladding and (2) Fiber core.
  • a fiber tip is an exposed area of fiber core, which is formed by cutting a fiber and polishing the cut surface.
  • the pigtailed fiber 211 is a typical fiber, which is able to focus light from a plurality of light sources before it goes through the fiber bundle 109 into the optical engine 103 of the imaging instrument 101.
  • FIG. 6 is a flow-chart that illustrates how the fiber coupler system of the laser compartment is utilized within the imaging system.
  • the software program records or measures the light intensity emanating from the output end 119 of the fiber bundle 109.
  • One way to make this measurement is to utilize a typical laser power measurement device, which is wirelessly or connected by a wire (not shown) to the computer 117.
  • the fiber coupler adjuster system GUI displays the laser power measurement on the display of computer 117.
  • the laser power measurement for fiber 109a may be 5OmW (mill watt), which is the expected power emitted from a certain type of light source.
  • fiber 109b it may be 8mW.
  • the computer utilizes the controller 501 to move the actuator
  • actuators 203a and 203d are positioned such that light intensity at the output end 119 is maximized.
  • the highest light intensity recorded for actuators 203a, 203b, 203c and 203d (blocks 603, 605, 607 and 609) are recorded/stored at the computer 117.
  • the highest light intensity for actuator 203a may be ImW
  • the highest light intensity for actuator 203b may be 1.5mW
  • the highest light intensity for actuator 203c may be 1.6 mW
  • the highest light intensity for actuator 203d may be 1.61 mW.
  • the computer 117 utilizes the highest light intensity among all of the actuators 203a, 203b, 203c and 203d, such as 1.6ImW at the actuator 203d as the optimal position.
  • the computer compares the current light intensity of the output end 119 with each of the light intensities from the actuators 203a, 203b, 203c and 203d, described above, to the measurement recorded at block 601.
  • the computer determines if the measurement recorded at block 601 is equivalent to the highest light intensity measured among the actuators 203a, 203b, 203c and 203d. For example, as shown above the highest light intensity of 1.6ImW is for actuator 203d. If both measurement values are close to each other (for example, measurement of 1.6ImW at actuator 203d is within 5% of measurement at block 601), the process ends. However, if the highest light intensity of 1.6ImW at actuator 203d is significantly higher than block 601, then the process goes back to block 603 and repeats blocks 603 thru 611.
  • FIG. 7 shows another embodiment of the fiber coupler system.
  • the embodiment has two parts: one part containing fiber mount 207 and alignment base 201 and another part containing a glass mount 705, a flat optical glass 703 and alignment base 701.
  • Alignment base 201 includes a first actuator 203a, a second actuator 203b, a first counter- force mechanism 205 a and a second counter-force mechanism 205b. It connects to fiber mount 207 and tilts the fiber mount about x and y axis.
  • Alignment base 701 includes a first actuator 203 c, a second actuator 203 d, a first counter- force mechanism 205 c and a second counter-force mechanism 205 d.
  • the flat glass 703 transmits the laser beam 221 to alignment base 201 with minimal loss.
  • the surfaces of the glass may be coated with suitable anti-reflection coating.
  • the actuators of alignment base 701 tilt the flat glass 703 and the glass mount 705 about x and y axis.
  • the magnitude of tilt about x and y-axis can each be within 1 to 30 degrees.
  • the laser beam 221 shifts laterally along y or x axis respectively. All of the aforementioned actuators for FIG. 7 are connected to the controller 501, where the controller 501 as described above controls the movement of the actuators.
  • This invention provides a system and method that allows a user to adjust the amount of laser light that is coupled into a fiber when the laser beam is focused on to the fiber tip using an optical lens.
  • the user is able to determine the initial amount of laser light that is emanating from the output end of the fiber or fiber bundle, then the user is able to adjust the fiber coupler system to maximize the light output.
  • This fiber coupler system provides the user with a simple and automated method for adjusting the fiber coupler system so it can maximize the light entering the fiber tip.
  • the present invention has been described in context of its use in microscopy. It will be obvious to those skilled in the art, the invention can be readily employed in other areas (interferometry, metrology, telecommunication, etc.) which have a need to maximize the laser light coupled to a suitable fiber.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

Cette invention porte sur un système et sur un procédé qui permettent à un utilisateur de régler la quantité de lumière laser qui est couplée dans une fibre lorsque le faisceau laser est focalisé sur la pointe de la fibre à l'aide d'une lentille optique. L'utilisateur peut déterminer la quantité initiale de lumière laser qui émane de l'extrémité de sortie de la fibre du faisceau de fibres, après quoi l'utilisateur peut régler le système de coupleur de fibre afin de rendre maximale la sortie de lumière. Ce système de coupleur de fibre procure à l'utilisateur un procédé simple et automatisé pour régler le système de coupleur de fibre de telle sorte qu'il peut rendre maximale la lumière entrant dans la pointe de la fibre.
PCT/US2008/074323 2007-08-29 2008-08-26 Système et procédé pour régler un coupleur de fibre WO2009029620A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96873807P 2007-08-29 2007-08-29
US60/968,738 2007-08-29

Publications (1)

Publication Number Publication Date
WO2009029620A1 true WO2009029620A1 (fr) 2009-03-05

Family

ID=40387749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/074323 WO2009029620A1 (fr) 2007-08-29 2008-08-26 Système et procédé pour régler un coupleur de fibre

Country Status (1)

Country Link
WO (1) WO2009029620A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102435986A (zh) * 2011-09-16 2012-05-02 北方民族大学 全光纤激光雷达单模光纤自动耦合系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7008121B2 (en) * 2003-02-21 2006-03-07 Csem Centre Suisse D'electronique Et De Microtechnique Sa Apparatus and method for real-time optical fiber coupling
US7068891B1 (en) * 2002-03-12 2006-06-27 Palomar Technologies, Inc. System and method for positioning optical fibers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7068891B1 (en) * 2002-03-12 2006-06-27 Palomar Technologies, Inc. System and method for positioning optical fibers
US7008121B2 (en) * 2003-02-21 2006-03-07 Csem Centre Suisse D'electronique Et De Microtechnique Sa Apparatus and method for real-time optical fiber coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102435986A (zh) * 2011-09-16 2012-05-02 北方民族大学 全光纤激光雷达单模光纤自动耦合系统

Similar Documents

Publication Publication Date Title
CN100498411C (zh) 激光聚光光学系统
JP5779597B2 (ja) 顕微鏡の構造ユニット、顕微鏡装置及び顕微鏡の構造ユニットの使用
US7042638B2 (en) Device for coupling light into a microscope
KR100854175B1 (ko) 레이저 집광 광학계
US8014065B2 (en) Microscope apparatus with fluorescence cube for total-internal-reflection fluorescence microscopy
US20140015953A1 (en) Compact microscopy system and method
JP2012506049A (ja) モジュール原子間力顕微鏡
WO2008048612A2 (fr) Caméra microscopique miniature
US9075239B2 (en) Optical system for forming optical path of oblique angle and method thereof
WO2008100695A2 (fr) Système et procédé d'ajustement de l'aberration sphérique de lentilles d'objectifs
US6850362B2 (en) Microscope optical system with a stationary sample stage and stationary viewing ports suited for viewing various fields of view of a sample
US20020097485A1 (en) Confocal microscope
JP2002048978A (ja) 対物レンズユニット、対物レンズユニットを有する光学装置及びその光学装置を用いた観察方法
JPWO2009142312A1 (ja) 顕微鏡装置
CN102648430B (zh) 用于扫描显微镜的移相滤光器
WO2009029620A1 (fr) Système et procédé pour régler un coupleur de fibre
JP2002521733A (ja) コンパクト単一対物レンズθ顕微鏡
US20200064608A1 (en) Lightsheet microscope
JP4867253B2 (ja) 顕微鏡装置及びレーザユニット
US7936502B2 (en) Microscope
AU2008320632B8 (en) Improvements in and relating to scanning confocal microscopy
JP2009181123A (ja) 走査型レーザ顕微鏡および非デスキャン検出のためのサブアセンブリ
US20130321907A1 (en) Adjustable Total Internal Reflectance Microscopy (TIRFM) Illuminator Apparatus
JP4912626B2 (ja) 顕微鏡、及び顕微鏡の観察方法
JP5606393B2 (ja) 試料観察方法、及びレンズホルダ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08828884

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08828884

Country of ref document: EP

Kind code of ref document: A1