Modulight Introduces a 785 nm Single-Frequency Laser with High Power and Stability for Raman Spectroscopy
Tampere, December 30th, 2025, Modulight Corporation
Raman spectroscopy places strict requirements for lasers, including narrow linewidth and excellent wavelength and power stability. To address these needs, Modulight introduces ML6660, a spectroscopy-optimized laser platform built on the proven ML6600 architecture, especially tailored for applications requiring a specific and highly stable wavelength like Raman spectroscopy, materials characterization, and other analytical instrumentation.
At launch, ML6660 is demonstrated with a 785 nm Distributed Bragg Reflector (DBR) laser, which uses a monolithic on-chip grating to lock the emission to a single frequency. This configuration showcases the platform’s capabilities but represents only one example of what ML6660 can deliver. As a vertically integrated laser manufacturer, Modulight offers a broad wavelength portfolio spanning from the UV region to beyond 3 µm.
The 785 nm configuration with DBR laser technology enables exceptional wavelength stability, as the laser cavity is small, and there are no external components that can drift. The laser provides exceptionally high single-mode output powers with over 200 mW in free-space configuration and 150 mW fiber-coupled. In addition, the output power is configurable from 10 to 100% of the maximum power, with support for multiple power setpoints. This eliminates the need for external attenuation when working with delicate samples.
Modulight’s narrow-linewidth lasers are ideally suited as light sources for Raman spectroscopy, offering high spectral purity and wavelength stability. The required optical isolation is included in the system, making the laser insensitive to optical back reflections. Modulight designs all aspects of the laser – from semiconductor laser manufacturing to electronics, mechanics and software – enabling easy OEM integration as well as stand-alone use.
For more information on the ML6660 platform for Spectroscopy, please visit modulight.com or contact [email protected].
Modulight will showcase its broad range of products, including the ML6625, at Photonics West 2026 in San Francisco, Jan. 20 - 22, Booth #343.
LINKS
https://modulight.com/tailoredlaser/