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18 June 2024

Highest precision metrology in the mid-infrared

Menlo Systems introduces the Mid-IR Comb, the latest development in their family of optical frequency combs, pushing precision metrology into the 3 – 14 µm mid-infrared (mid-IR) spectral range. This so-called molecular fingerprint region allows for the unambiguous characterization of molecular signatures, providing insights into the chemical composition and reaction kinetics of organic or inorganic materials. The Mid-IR Comb enables high-sensitivity and high-accuracy measurements, such as mid-IR Fourier-transform spectroscopy (FTIR), nano-FTIR, mid-IR dual-comb spectroscopy, or frequency-locking of mid-IR quantum cascade lasers.

Figure: Menlo Systems’ Mid-IR Comb turn-key metrology system

The turn-key all-in-one system is based on a Menlo Systems’ robust and reliable figure 9® fiber mode-locked oscillator technology and difference frequency generation (DFG). The resulting carrier-envelope-offset (CEO)-free optical frequency comb can cover the spectral ranges of 3 – 5 µm, 5 – 8 µm, or 8 – 14 µm, determined by the customer, and provides up to 200 mW average optical power within a large spectral bandwidth of 50 to 300 cm-1. Optionally, the Mid-IR Comb can be fully CEO-stabilized in order to obtain comb lines featuring Hz-level linewidths in the mid-IR. With its cutting-edge technology and versatile capabilities, the Menlo Systems Mid-IR Comb is a reliable enabling tool for molecular analysis and materials science. A unique solution for unique fingerprints.

About Menlo Systems:

Precision in photonics. Together we shape a sustainable future.

Menlo Systems GmbH is a leading developer and global supplier of instrumentation for high-precision metrology. The company with headquarters in the west of Munich is known for its Nobel Prize winning optical frequency comb technology. With subsidiaries in the US, Japan, and China, and a global distributor network, Menlo Systems is closely connected to its customers from science and industry. The main product lines are optical frequency combs, time and frequency distribution, terahertz systems, ultrafast and ultra-stable lasers, and complete systems for quantum technology applications. Besides standard products, Menlo Systems develops and manufactures tailored solutions for laser-based precision measurements.

Menlo Systems GmbH

Bunsenstraße 5

82152 Martinsried

Tel.:     +49 89 189166 0

Fax:      +49 89 189166 111


Menlo Systems, Inc.

6205 Lookout Road, Unit D

Boulder, CO, 80301

Phone: +1 303-900-1390


Menlo Systems K.K.

12-5, Chuo Godo Building,

Naka-ku, Chuo 2-Chome,

Hamamatsu, Shizuoka, Japan

Shanghai Menlo Systems Quantum Laser Technology Co., Ltd.

Room A502, No.100, Lane 2891

South Qilianshan Road

Putuo District

Shanghai 200331, China

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