BRM-760X Narrow Linewidth Laser: A Pure, Stable Monochromatic Coherent Light Source, the Ideal Partner for Raman Spectroscopy

Product Essence: High-Quality Coherent Excitation Source

The core characteristic of the BRM-760X series narrow linewidth laser is “purity” – linewidth < 0.1nm, power stability ±2%, and built-in TEC temperature control for stable output. It provides single-wavelength, narrow-linewidth, highly stable coherent light, primarily used for exciting samples to generate Raman scattering, fluorescence, and other signals, rather than for direct measurement.

How to Select: Starting from “What Sample Will You Measure?”

The first principle of selection: Lasers of different wavelengths behave completely differently in samples. The wavelength determines penetration depth, fluorescence interference level, and Raman signal intensity.

Standard Wavelengths & Customization Service:

The BRM-760X series standard products offer four commonly used wavelengths: 532nm, 785nm, 830nm, and 1064nm, covering the main Raman application bands from visible to near-infrared. If you require other specific wavelengths (such as 488nm, 638nm, 670nm, 980nm, etc.), we support wavelength customization services. Please contact our sales team to discuss your specific requirements, and we will provide a tailored solution.

Quick Selection Guide:

• Inorganic materials, carbon materials → 532nm

• Organic materials, pharmaceuticals, biological tissues → 785nm (preferred) or 830nm

• Dark samples or live specimens → 830nm or 1064nm

• Other special wavelength requirements → Contact us for customization

Need External Modulation?

The BRM-760X supports 5V TTL / 5V Analogue external modulation.

• Standalone / manual control → No modulation needed.

• Integration into automated systems / timing synchronization → External modulation is necessary.

  
  

Building a Complete Raman Spectroscopy System: Modular Configuration

The BRM-760X narrow linewidth laser is the core excitation source for a Raman system. To meet the flexibility needs of research and product prototyping, Brolight offers Raman spectrometers and Raman fiber optic probes. Users can freely combine modules based on their application to build a complete Raman measurement chain.

Typical Raman System Components:

Note on Spectrometer Sensitivity:

Raman scattering signals are inherently very weak (typically 10⁻⁶ to 10⁻⁸ of the excitation intensity). For low-concentration samples, weakly scattering materials (e.g., some biological tissues, transparent crystals), or fast imaging needs, spectrometer sensitivity directly determines whether a signal can be detected. Brolight offers high-sensitivity Miniature Spectrometers optimized for weak signal applications, achieving higher signal-to-noise ratios under the same excitation conditions.

Key Specifications of SIM-6131 Series Raman Probe:

Modular Advantage: Research and product development often require flexible experimental setups. Brolight’s Raman system uses a modular design – laser, probe, and spectrometer can be selected and replaced independently. Whether building a lab research platform or conducting prototype validation and functional testing for new products, you can find the right configuration to quickly validate technical approaches and reduce upfront investment costs.

Typical Application Scenarios

Scenario 1: Raman Spectroscopy Analysis (Core Application)

Raman spectroscopy is a molecular fingerprint technique. The laser excites the sample, generating Raman scattering. Analyzing the scattered spectrum can non-destructively identify material composition.

Practical Tips for Wavelength Selection:

• 785nm is the most widely used in chemistry, pharmaceuticals, and materials due to low fluorescence.

• 532nm suits inorganic materials and carbon materials, but biological samples can show strong fluorescence.

• 1064nm has the lowest fluorescence interference, but signal strength is inversely proportional to the fourth power of the wavelength.

Scenario 2: Flow Cytometry

Lasers excite fluorescent markers on cells. Narrow linewidth reduces spectral overlap, improving detection specificity.

Scenario 3: Confocal Microscopy

As an excitation source for confocal microscopy, 532nm is suitable for GFP and other green fluorescent proteins, while 785nm/830nm suits near-infrared dyes for multiphoton imaging.

Summary

When you need a “pure, stable, and wavelength-accurate” excitation light for Raman spectroscopy or fluorescence imaging, the BRM-760X is your ideal light source. Standard wavelengths are 532/785/830/1064nm, and other wavelengths are available upon request. Choose the most appropriate wavelength based on your sample’s fluorescence characteristics and penetration depth requirements.

Modular Setup Reminder: Brolight offers SIM-6131 Raman probes and Miniature Spectrometers optimized for resolution and sensitivity that match the BRM-760X series. These can be flexibly configured into a complete Raman measurement system, meeting the diverse needs of lab research and product development prototyping.