Light beam control for light beam

Abstract

The invention relates to beam control for a beam. In some implementations, an optical device may include a first optical element, where the first optical element is a first prism. The optical device may include a second optical element, where the second optical element is a second prism, and where the optical device is configured to receive the light beam and output the light beam. The first optical element and the second optical element may be configured to change a beam shape of the light beam such that the light beam has a first shape at a first position and a second shape at a second position.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 511,475, entitled “PRISM FOR OPTICAL COMPONENT COUPLING,” filed on June 30, 2023. The disclosure of the prior application is considered a part of and incorporated by reference into this patent application. Technical Field

[0003] The present disclosure relates generally to an optical device, and to an optical device for controlling a light beam. Background Art

[0004] The beam profile of a beam has a significant impact on the system performance of the system using the beam. For example, a beam with an annular beam profile, or an annular beam, can achieve superior cutting performance for a manufacturing system. However, the beam profiles of most fiber-optic transmission beams are relatively simple. For example, the beam profile can be a Gaussian or near-Gaussian profile of a low beam parameter product (BPP) laser (e.g., a BPP less than or equal to about 3 millimeters times milliradians (mm-mrad)), which can be used to process thin metal sheets (e.g., metal sheets with a thickness less than or equal to about 3 mm) using a tightly focused beam. As another example, the beam profile can be a top hat (sometimes called a flat top) profile of a high BPP laser (e.g., a BPP greater than about 3 mm-mrad), which can be used to process thick metal sheets (e.g., metal sheets with a thickness greater than about 3 mm) using a larger beam. Summary of the invention

[0005] In some implementations, an optical device includes a first optical element and a second optical element, wherein the first optical element is a first prism, wherein the second optical element is a second prism, wherein the optical device is configured to receive a light beam and output the light beam, and the first optical element and the second optical element are configured to change a beam shape of the light beam so that the light beam has a first shape at a first position and a second shape at a second position.

[0006] In some implementations, the first prism and the second prism are pyramid prisms.

[0007] In some implementations, the second shape is an annular beam shape, the annular beam shape having a threshold level of edge sharpness.

[0008] In some implementations, at least one of the first optical element or the second optical element is movable to adjust the second shape.

[0009] In some implementations, at least one of the first optical element or the second optical element is rotatable about an axis of a beam path formed by the light beam between the first optical element and the second optical element.

[0010] In some implementations, the optical device is configured to separate the light beam into a plurality of components at a first location.

[0011] In some implementations, an optical system includes a collimating lens for collimating a light beam; a focusing lens for focusing the light beam; and an optical device for shaping the light beam, the optical device being disposed between the collimating lens and the focusing lens, the optical device including: a first pyramid prism and a second pyramid prism, the first pyramid prism and the second pyramid prism being positioned so that the light beam has a first beam shape in a near field and a second beam shape in a far field.

[0012] In some implementations, the optical system further includes: an optical emitter for emitting a light beam toward the collimating lens.

[0013] In some implementations, the optical system further includes a process cable for receiving the light beam from the focusing lens and directing the light beam toward the target.

[0014] In some implementations, the near field is at an input to the process cable, and wherein the far field is at an output of the process cable.

[0015] In some implementations, the near field is at an input of the process cable, and wherein the far field is at a target, the target being external to the process cable and aligned with an output of the process cable.

[0016] In some implementations, at a first relative position of the first pyramid prism and the second pyramid prism, the first beam shape is a point beam shape and the second beam shape is an annular beam shape, and wherein at a second relative position of the first pyramid prism and the second pyramid prism, the first beam shape is a split beam shape and the second beam shape is a vortex mode beam shape.

[0017] In some implementations, the optical system is configured to output an annular beam shape extending along the entire output beam profile.

[0018] In some implementations, the optical system is configured to output the light beam to have an annular beam shape having an edge steepness exceeding a threshold edge steepness value.

[0019] In some implementations, the optical system further includes an actuation assembly configured to linearly move at least one of the first pyramid prism or the second pyramid prism relative to a beam path formed by the light beam.

[0020] In some implementations, the optical system further includes an actuation assembly configured to rotationally move at least one of the first pyramid prism or the second pyramid prism about an axis of a beam path formed by the light beam.

[0021] In some implementations, a method includes setting, by a controller, a relative position of a first optical element and a second optical element within an optical device within an optical system to a first relative position, wherein the first optical element and the second optical element are a pyramid prism pair, wherein the optical system outputs a light beam having a first beam shape when the relative position is set to the first relative position; and adjusting, by the controller, the relative position of the first optical element and the second optical element within the optical device within the optical system to a second relative position, wherein the optical system outputs a light beam having a second beam shape when the relative position is set to the second relative position.

[0022] In some implementations, the method further includes receiving feedback identifying the first beam shape; and wherein adjusting the relative position to a second relative position includes adjusting the relative position to the second relative position in conjunction with a control signal associated with the feedback.

[0023] In some implementations, adjusting the relative position to the second relative position includes at least one of translating or rotating the first optical element or the second optical element.

[0024] In some implementations, the method further includes coupling the optical device to an optical fiber within the optical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1A-1B is a diagram of an example implementation associated with beam steering for a light beam;

[0026] Figure 2A-2B is a diagram of an example implementation associated with beam steering for a light beam; and

[0027] Figure 3 is a flow chart of an example process associated with beam steering for a light beam. DETAILED DESCRIPTION

[0028] The following detailed description of example implementations refers to the accompanying drawings.The same reference numbers in different drawings may identify the same or similar elements.

[0029] An optical system may include optical devices, such as optical transmitters, process cables, optical elements (e.g., lenses, filters, or reflectors, among other examples) to emit a light beam having a particular set of optical properties. Examples of such optical systems may include communication systems, measurement systems, sensing systems, manufacturing systems, ranging systems, or three-dimensional (3D) gesture detection systems, among other examples. Different types of optical systems or use cases for optical systems may be associated with different desired optical properties. For example, for an optical communication system, it may be desirable to have a light beam that can maintain a central wavelength with high precision and that can be modulated to transmit information at a high throughput rate. As another example, for an optical manufacturing system, it may be desirable to have a light beam that can maintain a consistent energy level, have a particular beam shape, and / or be energy efficient.

[0030] Different optical elements may be used to achieve different optical properties. For example, an optical coupler, which may include a lens, may be disposed between an optical transmitter and a process cable to shape a light beam to be output from the process cable. In other words, the optical transmitter may emit a light beam to the optical coupler. The optical coupler may direct the light beam to an input of the process cable, through which the light beam may propagate to an output of the process cable. The output of the process cable may direct the light beam to a target, such as, in a manufacturing environment, an object to be cut, etched, brazed, clad, hardened, or welded, etc.

[0031] In this configuration, in some techniques, the beam profile can be changed based at least in part on whether the beam is on-axis toward the process cable (e.g., toward the center of the process cable at an angle less than a threshold, resulting in an amount of reflection within the process cable less than a threshold) or off-axis toward the process cable (e.g., toward an edge of the process cable at an angle greater than a threshold, resulting in an amount of reflection within the process cable equal to or greater than a threshold). In the former case, the beam can have a spot profile at the input of the process cable and a spot profile at the output of the process cable, which may be desirable for cutting relatively thin metals. In the latter case, the beam can have a spot profile at the input of the process cable and a ring profile at the output of the process cable, which may be desirable for cutting relatively thick metals.

[0032] A pedestal optical device can be introduced into the optical coupler (e.g., between the optical transmitter and the lens of the optical coupler) to change the beam profile. The pedestal optical device can receive a portion of the beam output from the optical transmitter and guide the portion of the beam off-axis (e.g., while the remaining portion of the beam remains on the axis). Therefore, the process cable receives the on-axis portion of the beam and the off-axis portion of the beam, resulting in both the spot profile portion of the beam output by the process cable and the annular profile portion of the beam. By controlling how much of the beam is separated by the pedestal optical device, the spot profile portion of the beam can be made larger than the annular profile portion of the beam, thereby producing a pedestal profile (e.g., a profile including an annular portion with a spot at the center of the annular portion, rather than a profile with a gap at the center of the annular portion as in a pure annular profile). In other words, by adjusting the pedestal optical device, the shape of the pedestal can be adjusted (e.g., the relative light energy in the annular portion and the spot portion of the beam can be changed). This can be desirable for certain use cases. However, for other use cases, another type of beam profile may be required, such as a vortex beam profile, which has a donut-shaped beam shape along the entire beam profile and produces extremely sharp beam edges, enabling precise control of the beam.

[0033] Figure 1A-1B is a diagram of an example implementation 100 associated with beam steering for a light beam. Figure 1A-1B As shown, example implementation 100 includes an optical transmitter 110 , a collimating lens 120 , an optical shaper 130 , a focusing lens 140 , and a process cable 150 .

[0034] The optical emitter 110 may include a vertical cavity surface emitting laser (VCSEL). For example, the optical emitter 110 may be configured to output a light beam having a specific beam profile toward the collimating lens 120. In some implementations, the optical emitter 110 may be configured for a light beam having a power greater than a threshold amount. For example, the optical emitter 110 may have an optical power greater than 1 kilowatt (kW), greater than 3 kW, greater than 5 kW, greater than 10 kW, or more. The collimating lens 120 may collimate the light beam and direct the light beam to the optical shaper 130. The optical shaper 130 may shape the light beam and direct the light beam to the focusing lens 140, which may direct the light beam to the process cable 150. In other examples, other optical component sets may be aligned with the optical shaper. For example, the optical shaper 130 may be directly aligned with the optical emitter 110 (e.g., without the collimating lens 120) and / or directly aligned with the process cable 150 (e.g., without the focusing lens 140). Additionally or alternatively, additional optical components may be included in the beam path, such as, for example, an optical filter disposed between the optical emitter 110 and the collimating lens 120. Additionally or alternatively, the optical shaper 130 may be aligned with a different set of components. For example, instead of coupling the optical emitter 110 to the process cable 150, the optical shaper 130 may couple the first process cable to the second process cable. In some implementations, the optical shaper 130 and one or more other optical components (e.g., examples such as the collimating lens 120 or the focusing lens 140) may be packaged together as an optical coupler. In other words, some optical systems may include optical components such as the optical emitter 110, the optical coupler, and the process cable 150, and the optical coupler may include a set of optical components such as the collimating lens 120, the optical shaper 130, or the focusing lens 140.

[0035] In some implementations, the optical shaper 130 may include a collection of optical elements. For example, the optical shaper may include a first optical element 132 and a second optical element 134. In this case, at least one of the first optical element 132 or the second optical element 134 may be moved relative to the other to achieve beam shaping. Figure 1A In FIG. 1 , before the rotation of the optical element 134, the first beam shape 170a is realized in the near field. Figure 1B , a second beam shape 170b is achieved in the near field after rotation of the optical element 134. As described in more detail herein, moving the optical element 132 or 134 may result in a change in the beam shape in the far field.

[0036] In some implementations, the optical element 132 / 134 may be a specific type of optical element. For example, the optical element 132 / 134 may be a prism set. In some implementations, the optical element 132 / 134 may be configured with a specific type of material. For example, the optical element 132 / 134 may include examples such as glass material, fused silica material (e.g., infrared grade fused silica), sulfide material, crystalline material (e.g., yttrium aluminum garnet (YAG) material, such as undoped YAG), or sapphire material. In some implementations, the optical element 132 / 134 (or another optical component described herein) may have one or more functional layers deposited on one or more surfaces. For example, the surface of the optical element 132 / 134 may include an anti-reflection (AR) coating, a dichroic coating, which may reduce or eliminate stimulated Raman scattering (SRS).

[0037] In some implementations, the optical elements 132 / 134 can have a particular shape. For example, as shown, the optical elements 132 / 134 can be pyramidal prisms (e.g., four-sided pyramids) with three facets and a base. By using a pyramidal prism with three facets, the optical shaper 130 can maintain the shape of the beam field when the beams are recombined, as described in more detail herein (e.g., as a hexagonal close-packed shape). Other numbers of optical elements, other types of optical elements, or optical elements of other shapes are contemplated. For example, a two-facet optical element set can steer the beam and can change the shape of the beam field when the beams are recombined (e.g., as two back-to-back semicircles).

[0038] In some implementations, the optical elements 132 / 134 can shape the light beam directed through the optical shaper 130. For example, the three facets of the first optical element 132 can split the light beam into three portions having three different directions. The three portions of the light beam can propagate from the base of the optical element 132 to the base of the optical element 134 in three different directions. The three portions of the light beam can propagate through the optical element 134 toward the three facets of the optical element 134. The three facets of the optical element 134 can redirect the three portions of the light beam in a single direction as a single beam toward the focusing lens 140. In other words, the light beam enters the optical element 132 as a collimated light beam (e.g., having a hexagonal close-packed field shape), travels from the optical element 132 to the optical element 134 as a non-collimated light beam, and leaves the optical element 134 as a collimated light beam (e.g., retaining the hexagonal close-packed field shape).

[0039] In some implementations, the spacing between the optical elements 132 / 134 can be associated with the geometry of the optical elements 132 / 144. For example, an optical element 132 / 134 having a flat pyramid shape can have a larger spacing than an optical element 132 / 134 having an angled (e.g., less flat or steep sides) pyramid shape. In some implementations, the rotation difference between the optical elements 132 / 134 is associated with the optical characteristics of the output beam (e.g., the output beam from the optical shaper 130 and / or from the process cable 150). For example, the optical elements 132 / 134 can be rotated 180 degrees relative to each other, as shown, to maintain a hexagonal close-packed arrangement of the beam field and maintain the brightness of the beam.

[0040] In some implementations, the relative position of the optical elements 132 / 134 can change or alter the characteristics of the light beam (e.g., in the far field while maintaining the light beam in the near field). For example, the optical element 134 can be translated or rotated relative to the optical element 132 (or vice versa) to change the characteristics of the light beam. In some implementations, the optical element 134 can be attached to a moving assembly, such as a rotating motor or a translating motor, to move relative to the optical element 132 (or vice versa). Additionally or alternatively, the optical elements 132 / 134 can be mounted on a platform or housing that can be manually adjusted. The translation of the optical element 134 relative to the optical element 132 can cause a change in the near field (e.g., by expanding or contracting the near field of each portion of the light beam).

[0041] Similarly, rotation of optical element 134 relative to optical element 132 may result in a change in the near field (e.g., by converging or diverging portions of the light beam). Figure 1A As shown, at the first relative position of the optical elements 132 / 134, the beam shape at the input of the process cable 150 has three portions of the beam that approximately overlap. Figure 1B As shown, at a second relative position of optical elements 132 / 134 (eg, rotation of optical element 134 relative to the optical axis of the light beam), the three portions of the light beam diverge toward the edge of the beam field.

[0042] As above, Figure 1A-1B Other examples can be found in the Figure 1A-1B are different. Figure 1A-1B The number and arrangement of the devices shown are provided as examples. Figure 1A-1B There may be more devices, fewer devices, different devices, or differently arranged devices than shown. Figure 1A-1B Two or more of the devices shown may be implemented in a single device, or Figure 1A-1B The single device shown may be implemented as multiple distributed devices. Additionally or alternatively, Figure 1A-1B The device collection (e.g., one or more devices) shown may perform the operations described as being performed by Figure 1A-1B Another set of devices is shown performing one or more functions.

[0043] Figure 2A-2B is a diagram of an example implementation 200 associated with beam steering for a light beam. Figure 2A-2B As shown, a light beam directed through an optical coupler (such as optical shaper 130) may have a first beam profile in a near field and a second beam profile in a far field, which may be a point outside (or at an end of) the process cable through which the light beam propagates. Figure 2A As shown, at a first relative position of the pyramid prism within the optical coupler, the light beam can have a point profile in the near field and a first shape in the far field. For example, the beam profile of the first shape can have a beam parameter product (BPP) of approximately 1.4 millimeters by milliradians (mm-mrad). In some implementations, in conjunction with the relative positions of the optical elements of the optical coupler, the first beam shape can be a point beam shape or a split beam shape.

[0044] like Figure 2B As shown, when at least one of the pyramid prisms moves relative to another of the pyramid prisms within the optical coupler, the beam profile changes to multiple points with angular momentum in the near field and changes to a second shape (e.g., a vortex profile or annular beam) in the far field. For example, the beam profile of the second shape can have a maximum BPP of approximately 12 mm-mrad. In some implementations, the second shape can have a spiral structure. For example, the second shape can be an annular beam shape (e.g., extending along the entire output beam profile) or a vortex mode beam shape. Additionally or alternatively, the second shape can have a reduced optical focal length at a center point (e.g., the axis of travel of the beam) relative to the first shape. Additionally or alternatively, the second shape can have a steeper degree than the first shape. In other words, the transition between a first optical power level (e.g., a minimum value) and a second optical power level (e.g., a maximum value) can occur at a shorter physical distance on the beam profile of the second shape relative to the first shape.

[0045] In this way, the use of the pyramid prism pair increases the edge sharpness of the annular beam. For example, the pyramid prism pair can achieve a threshold level of edge steepness. Additionally or alternatively, the pyramid prism pair results in the generation of annular beams in both the near field and the far field (e.g., generating a vortex beam). Additionally or alternatively, the pyramid prism pair results in improved dynamic range of the beam parameter product and rotation-based beam adjustment decoupling (e.g., rotation-based beam adjustment is decoupled from vibration along the translation axis).

[0046] As above, Figure 2A-2BOther examples can be found in the Figure 2A-2B are different.

[0047] Figure 3 is a flow chart of an example process 300 associated with beam steering for a light beam. In some implementations, Figure 3 One or more process blocks of are executed by the controller. For example, Figure 3 One or more process blocks of can be performed by a linear motor (or its electrical controller), a rotary motor (or its electrical controller), an actuation assembly (e.g., for linear or rotary actuation), or another type of control device. In some implementations, Figure 3 One or more process blocks of the controller are performed by another device or group of devices separate from or including the controller.

[0048] like Figure 3 As shown, process 300 may include setting a set of optical elements of an optical device in a first position (block 310). For example, as above, a controller may set a relative position of a first optical element and a second optical element within an optical device within an optical system to a first relative position. In some implementations, the first optical element and the second optical element are a pyramid prism pair. In some implementations, the optical system outputs a light beam having a first beam shape when the relative position is set to the first relative position, as described above.

[0049] like Figure 3 As shown, in some implementations, process 300 may include determining an output of the optical element set at a first position of the optical device (block 320). For example, the controller may receive feedback indicating a beam shape of a light beam output from the optical device, as above. In this case, the controller may determine to change the beam shape. Additionally or alternatively, the controller may be triggered to change the beam shape without receiving a feedback signal.

[0050] like Figure 3 As further shown, process 300 may include adjusting the orientation of the optical element set of the optical device to a second position to change the output (block 330). For example, the controller may adjust the relative position of the first optical element and the second optical element within the optical device within the optical system to the second relative position, as described above. In some implementations, the optical system outputs the light beam to have a second light beam shape when the relative position is set to the second relative position.

[0051] Process 300 may include additional implementations, such as any single implementation or any combination of implementations described below and / or described in conjunction with one or more other processes described elsewhere herein.

[0052] In a first implementation, process 300 includes receiving feedback identifying a first beam shape, and wherein adjusting the relative position to a second relative position includes adjusting the relative position to the second relative position in conjunction with a control signal associated with the feedback.

[0053] In a second implementation, either alone or in combination with the first implementation, adjusting the relative position to the second relative position includes at least one of translating or rotating the first optical element or the second optical element.

[0054] In a third implementation, alone or in combination with one or more of the first and second implementations, process 300 includes coupling an optical device to an optical fiber within an optical system.

[0055] although Figure 3 An example block diagram of process 300 is shown, but in some implementations, process 300 includes Figure 3 More blocks, fewer blocks, different blocks, or differently arranged blocks than shown. Additionally or alternatively, two or more of the blocks of process 300 may be executed in parallel.

[0056] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the implementation to the precise form disclosed. Modifications and variations may be made based on the above disclosure, or may be obtained from the practice of the implementation. In addition, unless the above disclosure explicitly provides a reason why one or more implementations may not be combined, any implementation described herein may be combined.

[0057] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0058] Even though specific combinations of features are listed in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various implementations. In fact, many of these features can be combined in ways that are not specifically listed in the claims and / or disclosed in the specification. Although each dependent claim listed below may directly depend on only one claim, the disclosure of various implementations includes each dependent claim in combination with each other claim in the claim set. As used herein, a phrase referring to "at least one" in a list of items refers to any combination of these items, including single members. For example, "at least one of a, b, or c" is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination with multiple identical items.

[0059] When a component or one or more components (e.g., a laser emitter or one or more laser emitters) is described or claimed (either within a single claim or across multiple claims) as performing multiple operations or being configured to perform multiple operations, the language is intended to broadly cover a variety of architectures and environments. For example, unless otherwise expressly required (e.g., by use of "first component" and "second component" or other language in the claim that distinguishes components), the language is intended to cover a single component performing or being configured to perform all operations, a group of components collectively performing or being configured to perform all operations, a first component performing or being configured to perform a first operation and a second component performing or being configured to perform a second operation, or any combination of components performing or being configured to perform operations. For example, when a claim is of the form "One or more components are configured to: perform X; perform Y; and perform Z," the claim should be interpreted as "One or more components are configured to perform X; one or more (possibly different) components are configured to perform Y; and one or more (possibly different) components are configured to perform Z."

[0060] Unless explicitly stated, any element, behavior or instruction used in this article should not be interpreted as key or necessary. In addition, as used in this article, the article "one" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used in this article, the article "the" is intended to include one or more projects quoted in combination with the article "the", and can be used interchangeably with "one or more". In addition, as used in this article, the term "set" is intended to include two or more projects (for example, a combination of related projects, unrelated projects, or related projects and unrelated projects), and can be used interchangeably with "one or more". If only one project is intended to be used, the phrase "only one" or similar language is used. In addition, as used in this article, the term "having", "having", "including" etc. are intended to be open terms. In addition, unless otherwise explicitly stated, the word "based on" means "at least partially based on". In addition, as used in this article, the term "or" is inclusive when used in a series, and can be used interchangeably with "and / or", unless otherwise explicitly stated (for example, if used in combination with "any one" or "only one"). Additionally, for ease of description, spatially relative terms (such as "below," "lower," "above," "upper," etc.) may be used herein to describe the relationship of one element or feature to another element or feature, as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device, equipment, and / or element in use or operation in addition to the orientation shown in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may be interpreted accordingly.

Claims

1. An optical device, comprising: The first optical element, wherein the first optical element is a first prism; as well as The second optical element, wherein the second optical element is a second prism, The optical device is configured to receive a light beam and output the light beam, and the first optical element and the second optical element are configured to change a beam shape of the light beam so that the light beam has a first shape at a first position and a second shape at a second position. 2 . The optical device of claim 1 , wherein the first prism and the second prism are pyramid prisms. 3 . The optical device of claim 1 , wherein the second shape is an annular beam shape having a threshold level of edge sharpness.

4. The optical device of claim 1, wherein at least one of the first optical element or the second optical element is movable to adjust the second shape.

5. The optical device of claim 1, wherein at least one of the first optical element or the second optical element is rotatable about an axis of a beam path formed by the light beam between the first optical element and the second optical element.

6. The optical device of claim 1, wherein the optical device is configured to separate the light beam into a plurality of components at the first position.

7. An optical system comprising: Collimating lens, used to collimate the light beam; A focusing lens, used for focusing the light beam; as well as An optical device, used for shaping the light beam, wherein the optical device is arranged between the collimating lens and the focusing lens, and comprises: The first pyramid prism, and Second pyramid prism, The first pyramid prism and the second pyramid prism are positioned such that the light beam has a first beam shape in a near field and a second beam shape in a far field.

8. The optical system according to claim 7, further comprising: An optical transmitter is used to transmit the light beam toward the collimating lens.

9. The optical system according to claim 7, further comprising: A process cable is configured to receive the light beam from the focusing lens and direct the light beam toward a target.

10. The optical system of claim 9, wherein the near field is at the input of the process cable, and Wherein the far field is at the output of the process cable.

11. The optical system of claim 9, wherein the near field is at the input of the process cable, and Wherein the far field is at the target, the target is external to the process cable and aligned with an output of the process cable.

12. The optical system of claim 9, wherein at a first relative position of the first pyramid prism and the second pyramid prism, the first beam shape is a point beam shape, and the second beam shape is a ring beam shape, and Wherein at a second relative position of the first pyramid prism and the second pyramid prism, the first beam shape is a split beam shape, and the second beam shape is a vortex mode beam shape.

13. The optical system of claim 9, wherein the optical system is configured to output an annular beam shape extending along an entire output beam profile.

14. The optical system of claim 9, wherein the optical system is configured to output the light beam to have an annular beam shape having an edge steepness exceeding a threshold edge steepness value.

15. The optical system of claim 9, further comprising: An actuation assembly is configured to linearly move at least one of the first pyramid prism or the second pyramid prism relative to a beam path formed by the light beam.

16. The optical system of claim 9, further comprising: An actuation assembly is configured to rotationally move at least one of the first pyramid prism or the second pyramid prism about an axis of a beam path formed by the light beam.

17. A method comprising: The controller sets the relative position of the first optical element and the second optical element in the optical device in the optical system to a first relative position, wherein the first optical element and the second optical element are a pyramid prism pair, wherein the optical system outputs the light beam to have a first light beam shape when the relative position is set to the first relative position; and The controller adjusts the relative position of the first optical element and the second optical element in the optical device in the optical system to a second relative position, wherein the optical system outputs the light beam to have a second light beam shape when the relative position is set to the second relative position.

18. The method according to claim 17, further comprising: receiving feedback identifying a shape of the first light beam; and Wherein adjusting the relative position to the second relative position comprises: The relative position is adjusted to the second relative position in conjunction with a control signal associated with the feedback.

19. The method of claim 17, wherein adjusting the relative position to the second relative position comprises: At least one of the first optical element or the second optical element is translated or rotated.

20. The method of claim 17, further comprising: The optical device is coupled to an optical fiber within the optical system.

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