KLC

KLC 1.0.0, released by THORLABS Inc. as the single and current version of the package, is a dedicated instrument-control application engineered to operate the company’s KLC101 LC (liquid-crystal) Controller. Designed for precision photonics work, the program provides a unified graphical interface through which researchers and OEM integrators can configure, calibrate, and real-time monitor the birefringence of connected LC retarders, enabling fast alignment of polarization optics, closed-loop intensity stabilization, and automated wave-plate sequencing without manual voltage adjustment. Alongside the interactive GUI, the distribution embeds a fully documented SDK that exposes identical functionality to C++, National Instruments LabVIEW™, and Python, allowing the same commands used in the UI to be scripted inside larger test-and-measurement suites, embedded in microscope control workflows, or called by custom LabVIEW VIs for high-throughput ellipsometry. Typical laboratory deployments therefore range from one-shot manual optimization of a single LC variable retarder on an optical bench to unattended multi-channel polarization-state analyzers that cycle through predetermined voltage lookup tables while logging Stokes parameters. Because the SDK ships inside the same installer, developers can move seamlessly between interactive debugging with the stand-alone utility and headless deployment on production setups, confident that the underlying command set remains version-locked at 1.0.0. The software is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.

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