# Software Downloads

{% hint style="info" %}
**NOTE:**  Released software versions older than the "**current release**" are not recommended for new applications but will be available for download indefinitely to support legacy systems, even after being superseded by newer released versions.

Intermediate versions labeled "**stable pre-release**" are recommended for new designs (to take advantage of bug fixes and new features) but may be removed upon completion of the next full release cycle or upon availability of a newer stable pre-release version.

Versions labeled "**pre-release**" should be used only as noted to enable specific new functionality or compatibility with prototype products.
{% endhint %}

## Axsun Integrated Engine Components

Contains installers for several Axsun Integrated Engine software components in a single archive for convenience and fewer individual downloads.  Includes the [Image Capture Tool](https://docs.axsun.com/axsun-knowledge-base/software-tools/image-capture-tool) and [Hardware Control Tool ](https://docs.axsun.com/axsun-knowledge-base/software-tools/hardware-control-tool)unified installer (with LabVIEW Run-Time Engine), corresponding USB and PCIe device drivers, and other required and optional 3rd-party dependencies.  Included software is not necessarily the most up-to-date version for each component (see individual sections below) but represents a snapshot of the available stable pre-release versions and compatible dependencies at the time of posting.  [See here for installation instructions](https://docs.axsun.com/axsun-knowledge-base/guides/integrated-engine/installing-software). 

<table><thead><tr><th width="327.924890196384">Versions</th><th width="150">Date</th><th>Links</th></tr></thead><tbody><tr><td>Image Capture Tool v1.0.0.434<br>Hardware Control Tool v1.0.0.267<br>PCIe Device Driver v1600<br>USB Device Driver v1.2.6</td><td>19 Jul 2023</td><td><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunIntegratedEngineComponents.zip">Windows</a></td></tr></tbody></table>

## GUI Tools

### [OCT Host](https://docs.axsun.com/axsun-knowledge-base/software-tools/oct-host) (.exe)

OCT Host documentation can be found [here](https://docs.axsun.com/axsun-knowledge-base/software-tools/oct-host).  OCT Host is available for Windows only.  The corresponding [AxsunOCTControl.NET](https://docs.axsun.com/axsun-knowledge-base/api-references/axsunoctcontrol.dll) API always matches the OCT Host version in a one-to-one fashion.

<table><thead><tr><th width="212.35598406924112">Version</th><th width="150">Date</th><th width="150">Links</th><th width="233.91311949347806">Notes</th></tr></thead><tbody><tr><td>2.2.0.2 <br>(pre-release)</td><td>12 Jan 2023</td><td><a href="https://downloads.axsun.com/public/software/LaserEngine/AxsunOCTHost_v2.2.0.2.zip">Windows</a></td><td>Required for <a href="../../oct-product-configurations#azmyth-oem-laser-engine">Azmyth OEM Laser Engine </a>support.</td></tr><tr><td>1.18.2 <br>(stable pre-release)</td><td>4 Aug 2020</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunOCTHost.zip">Windows</a></td><td></td></tr><tr><td>1.17.15 <br>(current release)</td><td>4 Sep 2018</td><td><a href="https://downloads.axsun.com/public/software/LaserEngine/AxsunOCTHost.zip">Windows</a></td><td></td></tr></tbody></table>

### [Image Capture Tool](https://docs.axsun.com/axsun-knowledge-base/software-tools/image-capture-tool) (.exe)

Image Capture Tool documentation can be found [here](https://docs.axsun.com/axsun-knowledge-base/software-tools/image-capture-tool).  Image Capture Tool is available for Windows only and depends on the AxsunOCTCapture library.

<table><thead><tr><th width="244.7142857142857">Version</th><th width="150">Date</th><th width="150">Links</th><th>Dependency Versions</th></tr></thead><tbody><tr><td>1.0.0.434 <br>(stable pre-release)</td><td>19 Jul 2023</td><td><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunImageCaptureTool.zip">Windows</a></td><td>Capture: 3.8.2</td></tr><tr><td>1.0.0.375 <br>(current release)</td><td>9 Jun 2021</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunImageCaptureTool.zip">Windows</a></td><td>Capture: 3.6.0</td></tr></tbody></table>

### [Hardware Control Tool](https://docs.axsun.com/axsun-knowledge-base/software-tools/hardware-control-tool) (.exe)

Hardware Control Tool documentation can be found [here](https://docs.axsun.com/axsun-knowledge-base/software-tools/hardware-control-tool).  Hardware Control Tool is available for Windows only and depends on the AxsunOCTControl\_LW library (or AxsunOCTControl.NET in a more limited fashion).&#x20;

<table><thead><tr><th width="244.7142857142857">Version</th><th width="150">Date</th><th width="150">Links</th><th>Dependency Versions</th></tr></thead><tbody><tr><td>1.0.0.267 <br>(stable pre-release)</td><td>19 Jul 2023</td><td><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunHardwareControlTool.zip">Windows</a></td><td><p>Control: 2.3.0.0</p><p>Control_LW: 1.7.1</p></td></tr><tr><td>1.0.0.192 <br>(current release)</td><td>9 Jun 2021</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunHardwareControlTool.zip">Windows</a></td><td>Control: 1.18.2<br>Control_LW: 1.0.0</td></tr></tbody></table>

## APIs & Libraries

### [AxsunOCTCapture](https://docs.axsun.com/axsun-knowledge-base/api-references/axsunoctcapture.dll) (.dll/.so)

<table><thead><tr><th width="241.7142857142857">Version</th><th width="131.3125657756262">Date</th><th width="150">Links</th><th>Notes</th></tr></thead><tbody><tr><td>3.8.2 <br>(stable pre-release)</td><td>19 Jul 2023</td><td><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTCapture_3.8.2_windows.zip">Windows</a><br><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTCapture_3.8.2_linux.tar.gz">Linux</a> (x64)<br><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTCaptureAPI_manual/index.html">Docs</a></td><td><p>PCIe driver: <a href="#pcie-device-driver">v1600</a></p><p>OpenCV (win): <a href="https://opencv.org/opencv-4-5-5/">v4.5.5</a></p></td></tr><tr><td>3.8.1 <br>(stable pre-release)</td><td>12 Jan 2023</td><td><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTCapture_3.8.1_windows.zip">Windows</a><br><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTCapture_3.8.1_linux.tar.gz">Linux</a> (x64)</td><td>PCIe driver: <a href="#pcie-device-driver">v1600</a><br>OpenCV (win): <a href="https://opencv.org/opencv-4-5-5/">v4.5.5</a></td></tr><tr><td>3.6.0 <br>(current release)</td><td>9 Jun 2021</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunOCTCaptureAPI.zip">Windows</a><br><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunOCTCaptureAPI_manual/index.html">Docs</a></td><td><p>PCIe driver: v1440 </p><p>OpenCV: <a href="https://opencv.org/opencv-4-5-0/">v4.5.0</a></p></td></tr><tr><td>3.0.0</td><td>26 Jul 2019</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/archive20210609/AxsunOCTCaptureAPI.zip">Windows</a><br><a href="https://downloads.axsun.com/public/software/EthernetDAQ/archive20210609/AxsunOCTCaptureAPI_manual/index.html">Docs</a></td><td>PCIe driver: v1290</td></tr><tr><td>2.5.2</td><td>4 Mar 2019</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/archive20190726/AxsunOCTCaptureAPI_v2.zip">Windows</a><br><a href="https://downloads.axsun.com/public/software/EthernetDAQ/archive20190726/AxsunOCTCaptureAPI_v2_manual/_axsun_o_c_t_capture_8h.html">Docs</a></td><td></td></tr></tbody></table>

{% hint style="info" %}
**AxsunOCTCapture** supports Ethernet and PCIe interfaces on x64 (Windows 10/11 and Linux) as well as Ethernet interface only on arm64 Linux.  32-bit support is unavailable.  [Contact us](https://docs.axsun.com/axsun-knowledge-base/other/getting-help) for more information about alternative platform support.
{% endhint %}

### [AxsunOCTControl\_LW](https://docs.axsun.com/axsun-knowledge-base/api-references/axsunoctcontrol-lightweight) (.dll/.so)

<table><thead><tr><th width="270">Version</th><th width="161.4">Date</th><th width="252">Links</th></tr></thead><tbody><tr><td>2.2.0 <br>(current release)</td><td>21 Oct 2025</td><td><a href="https://downloads.axsun.com/public/software/AxsunOCTControl_LW/AxsunOCTControl_LW_2.2.0_windows-x64-release.zip">Windows (x64)</a><br><a href="https://downloads.axsun.com/public/software/AxsunOCTControl_LW/AxsunOCTControl_LW_2.2.0_linux-x64-release.tar.gz">Linux (x64)</a><br><a href="https://downloads.axsun.com/public/software/AxsunOCTControl_LW/AxsunOCTControl_LW_2.2.0_linux-arm64-release.tar.gz">Linux (arm64)</a><br><a href="https://downloads.axsun.com/public/software/AxsunOCTControl_LW/AxsunOCTControl_LW_2.2.0_linux-arm32-release.tar.gz">Linux (arm32)</a><br><a href="https://downloads.axsun.com/public/software/AxsunOCTControl_LW/API_reference/">Docs</a></td></tr><tr><td>2.0.2 <br>(stable pre-release)</td><td>8 Mar 2024</td><td><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTControl_LW_2.0.2_arm32linux.tar.gz">Linux (arm32)</a></td></tr><tr><td>2.0.0 <br>(stable pre-release)</td><td>26 Dec 2023</td><td><p><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTControl_LW_2.0.0_windows.zip">Windows (x64)</a></p><p><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTControl_LW_2.0.0_x64linux.tar.gz">Linux (x64)</a></p><p><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunOCTControl_LW_2.0.0_arm64linux.tar.gz">Linux (arm64)</a><br><a href="https://downloads.axsun.com/public/software/EthernetDAQ/archive20251017/AxsunOCTControl_LW_API_manual_2.0.0/">Docs</a></p></td></tr><tr><td>1.0.0 <br>(original release)</td><td>9 Jun 2021</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunOCTControl_LW_API.zip">Windows (x64)</a><br><a href="https://downloads.axsun.com/public/software/EthernetDAQ/archive20251017/AxsunOCTControl_LW_API_manual_1.0.0/">Docs</a></td></tr></tbody></table>

{% hint style="info" %}
**AxsunOCTControl\_LW** supports x64 on Windows 10/11, x64 on Linux, arm64 on Linux, and arm32 on Linux.   [Contact us](https://docs.axsun.com/axsun-knowledge-base/other/getting-help) for more information about macOS or other alternative platform support.
{% endhint %}

### [AxsunOCTControl.NET](https://docs.axsun.com/axsun-knowledge-base/api-references/axsunoctcontrol.dll) (.dll)

Access the AxsunOCTControl.NET library via the corresponding version of [OCT Host linked above](#oct-host-.exe).

### Example Projects & Source Code

Source code is available in multiple programming environments for rudimentary example projects that illustrate the integration and use of the Axsun APIs within a client application.

{% hint style="info" %}
**NOTE:**  Example program structure is simplified for readability and is not intended for production use.
{% endhint %}

For integration in *non-*&#x43;-based environments, a class of external code wrappers is typically created for each library function employed by a client application. Axsun does not maintain external code wrappers in an exhaustive fashion for all library functions and all environments, but the function calls highlighted in the example projects provide a model which can be easily extended to wrap other functions in the libraries as needed.

Find example source code embedded within the reference documentation of the respective API or downloadable here:

<table><thead><tr><th width="182">Environment</th><th width="150">Date</th><th width="259">Libraries</th><th>Links</th></tr></thead><tbody><tr><td><a href="https://www.ni.com/en-us/shop/labview.html">LabVIEW (2021)</a></td><td>21 Jul 2022</td><td>Capture, Control_LW, Control</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunAPI_ExampleSourceLabVIEW.zip">Windows</a></td></tr><tr><td></td><td></td><td></td><td></td></tr></tbody></table>

## Device Drivers

### PCIe Device Driver

(Applicable to the Axsun PCIe DAQ only)

Installation instructions for Windows OS can be found [here](https://docs.axsun.com/axsun-knowledge-base/how-tos/installing-the-pcie-device-driver) (v1440 and older) or [here ](https://docs.axsun.com/axsun-knowledge-base/guides/integrated-engine/installing-software#pcie-device-driver)(v1500 and newer).  Installation instructions for Linux can be found [here](https://docs.axsun.com/axsun-knowledge-base/api-references/axsunoctcapture.dll/linux-installation).

<table><thead><tr><th width="148.60377358490564">Version</th><th width="150">Date</th><th width="322">Links</th></tr></thead><tbody><tr><td>v1600</td><td>11 Jan 2023</td><td><p><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunPCIeDAQsetupWD1600.zip">Windows</a></p><p><a href="https://downloads.axsun.com/public/software/EthernetDAQ/WD1600LNX86_64.tar.gz">Linux</a></p></td></tr><tr><td>v1500</td><td>11 Jul 2022</td><td><a href="https://downloads.axsun.com/public/software/stable_prerelease/AxsunPCIeDAQsetupWD1500.zip">Windows</a></td></tr><tr><td>v1470</td><td></td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/WD1470LNX86_64.tar.gz">Linux </a>(<a href="getting-help">license required</a>)</td></tr><tr><td>v1440</td><td>9 Jun 2021</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/AxsunPCIeDAQDeviceDriver.zip">Windows</a></td></tr><tr><td>v1290</td><td>4 Mar 2019</td><td><a href="https://downloads.axsun.com/public/software/EthernetDAQ/archive20210609/AxsunPCIeDAQsetupWD1290.zip">Windows</a></td></tr></tbody></table>

### USB Device Driver

(Applicable to Axsun Laser Engine, Ethernet/PCIe DAQ, and Camera Link DAQ when connecting via USB)

AxsunOCTControl\_LW on Linux OS uses the *usbfs* kernel driver which is included in the distribution and no additional installations are required.

AxsunOCTControl.NET and OCT Host on Windows OS use the *libusb-win32* generic USB device driver which is installed automatically by the [OCT Host installer executable](#oct-host-.exe).&#x20;

AxsunOCTControl\_LW on Windows OS requires a [newer version of the *libusb-win32* device driver (1.2.6)](https://downloads.axsun.com/public/software/LaserEngine/usb_driver.zip) than what may be installed by older versions of OCT Host.  See [here for installation](https://docs.axsun.com/axsun-knowledge-base/guides/integrated-engine/installing-software#usb-device-driver) or [upgrade ](https://docs.axsun.com/axsun-knowledge-base/api-references/axsunoctcontrol-lightweight/using-the-control_lw-api#usb-device-driver-windows-os-only)instructions.

## Sample OCT Data

Axsun OCT image data files (\**.dat*) are created by the [AxsunOCTCapture](https://docs.axsun.com/axsun-knowledge-base/api-references/axsunoctcapture.dll) library using the `axSaveFile()` command [or the corresponding button in the Image Capture Tool](https://docs.axsun.com/axsun-knowledge-base/software-tools/image-capture-tool#buffer).  These files can only be interpreted by the AxsunOCTCapture library via the `axLoadFile()` command or the corresponding button in the Image Capture Tool.  These sample data files are NOT intended to demonstrate any particular level of OCT image quality, but are available in a range of data types to aid the developer in software installation and API integration efforts.

<table><thead><tr><th width="196">Filename</th><th width="112">Size (MB)</th><th width="121">Data Type</th><th width="116"># Images</th><th>Notes</th></tr></thead><tbody><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/IRcard_JPEG.zip">IRcard_JPEG.dat</a></td><td>68</td><td>JPEG</td><td>200</td><td>Compressed</td></tr><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/IRcard_U8.zip">IRcard_U8.dat</a></td><td>178</td><td>U8</td><td>200</td><td></td></tr><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/IRcard_U16.zip">IRcard_U16.dat</a></td><td>264</td><td>U16</td><td>200</td><td></td></tr><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/IRcard_I16.zip">IRcard_I16.dat</a></td><td>335</td><td>I16</td><td>100</td><td>Raw 12-bit ADC data</td></tr><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/IRcard_complex.zip">IRcard_complex.dat</a></td><td>269</td><td>complex</td><td>100</td><td>Post-FFT Re &#x26; Im parts</td></tr><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/kaptontapeU8.zip">kaptontapeU8.dat</a></td><td>85</td><td>U8</td><td>100</td><td></td></tr><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/fingernailU8.zip">fingernailU8.dat</a></td><td>88</td><td>U8</td><td>100</td><td></td></tr><tr><td><a href="https://downloads.axsun.com/public/software/sample_OCT_data/fingertipU16.zip">fingertipU16.dat</a></td><td>131</td><td>U16</td><td>100</td><td></td></tr></tbody></table>

## Device Firmware & FPGA Bitstreams

(Applicable to Axsun Laser Engine, Ethernet/PCIe DAQ, and Camera Link DAQ)

Please [contact us](https://docs.axsun.com/axsun-knowledge-base/other/getting-help) for more information on[ updating your device's firmware ](https://docs.axsun.com/axsun-knowledge-base/how-tos/upgrading-board-firmware)or [FPGA bitstream](https://docs.axsun.com/axsun-knowledge-base/how-tos/upgrading-fpga-bitstreams).  Depending on the current firmware version, a device *may* need to be requalified or have some non-volatile settings reconfigured after an upgrade.  Our support team will help ensure compatibility with your preferred library versions and other device firmware prior to sending binaries or scheduling a remote upgrade and re-qualification via screen sharing.