Source: QA Group

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Optical Metrology Equipment: A Comprehensive Overview

TOPTICA Laser Sources

TOPTICA offers laser sources for various applications and optical metrology. These lasers are utilized in time and frequency measurements, tests of fundamental constants and theories, term interferometry, laser-based trace gas analysis, and the measurement of small magnetic fields. The precision required in these measurements necessitates tunable lasers with narrow linewidth and long-term stability. Specialized electronics modules are also essential for reliable laser stabilization, while additional laser accessories aid in characterizing and manipulating laser light.

METIRIO Optical Encoder

METIRIO provides a high-precision optical encoder designed for closed-loop nanopositioning applications, enabling maximum miniaturization, high resolution, and speed. With a remarkably small readhead volume, this encoder can achieve resolutions of less than one nanometer. It is available in various configurations, including unmounted, standard PCB, and flexible PCB options. Additionally, fully packaged and connectorized designs are offered, with the flexibility to customize for specific needs.

SILENTSYS Optical Frequency Discriminator

The optical frequency discriminator (OFD) system by SILENTSYS delivers a voltage signal proportional to the optical frequency excursions of the input laser beam. This turn-key module is ideal for laser frequency noise characterization and stabilization, significantly reducing optical linewidth. The OFD system boasts ultralow noise performance, achieving frequency noise levels as low as 0.1 Hz²/Hz with over 60 dB noise reduction. It covers a broad wavelength range from UV to NIR, making it a versatile tool for various applications.

Menlo Systems Optical Frequency Comb

Menlo Systems is a pioneer in optical frequency comb technology, offering a range of products including the automated SmartComb and the ultra-low noise optical frequency comb FC1500-ULNplus. Their patented figure 9® mode locking technology ensures minimal phase noise and reliable long-term operation. Optical interrogators by HBK FiberSensing are designed for precise measurements of Fiber Bragg Grating signals in large-scale sensing networks. These interrogators provide high-resolution static and dynamic measurements 24/7, with compatibility for hybrid optical/electrical sensing management through catman software.

Source: DIOPTIC GmbH
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