R2T Dual-Wavelength Narrow Linewidth Diode Laser Components

Precise Laser Solution for Scientific and Instrumentation Users
The R2T serves demanding engineering applications requiring a highly stable fiber pigtailed dual-wavelength narrow linewidth diode laser. It targets system designers in Raman spectroscopy, compact instrumentation, and optical bench setups who require consistent center wavelengths at 784.5 / 785.5 nm and 785 / 1064 nm with low thermal drift. By combining VBG wavelength locking with integrated environmental sensors, the module delivers reliable operation under continuous use. Its compact size simplifies integration, making it particularly suitable for laboratory and industrial environments where precision and stability are critical.

Advanced Technical Features for Enhanced Optical Performance
Incorporating VBG wavelength locking and a multi-mode chip, the R2T ensures a spectral linewidth below 0.1 nm with minimal temperature-induced wavelength drift of 0.01 nm/°C. This design includes integrated TEC cooling, PD photodetector, and thermistor, enabling real-time performance monitoring and thermal control. The module supports continuously adjustable CW powers of 600 / 600 mW (784.5 / 785.5 nm) and 500 / 800 mW (785 / 1064 nm), and higher power options are available upon customization. Electrical parameters such as threshold current (0.4 A), operating voltage (1.8 V), and slope efficiency demonstrate efficient, consistent laser output tailored for precision photonics applications requiring stringent optical specifications.

Integration-Ready Diode Laser Supporting Critical Industry Applications
The R2T fits complex optical platforms requiring narrow linewidth sources, such as Raman spectrometers and compact analytical instruments. Its stable multi-mode output enhances spectral purity critical in spectroscopy and calibration systems, while the modular design facilitates system-level integration for portable, especially handheld and benchtop instruments. Industries including chemical analysis, biomedical diagnostics, and academic research benefit from reduced alignment complexity and robust performance across operating conditions. This module supports reliable wavelength stability testing and compact system architectures, improving engineering productivity and measurement accuracy.


Product Advantages
Modular Design and Integrated Thermal Control for Seamless System Integration
The R2T’s architecture unifies a fiber pigtailed dual-wavelength narrow linewidth diode laser with integrated thermoelectric cooling, PD photodetector detection, and temperature sensing, providing precise environmental regulation at the component level. This modular approach simplifies optical system assembly by reducing external control hardware and allows compact packaging. Its free-space output facilitates straightforward beam alignment in optical benches or instrument modules, accelerating development cycles. The package’s thermal and current control capabilities ensure stable wavelength performance, enabling deployment in environments that demand continuous, maintenance-minimized laser source operation.

High-Precision Stability Enhancing Operational Reliability and Efficiency
Delivering a spectral linewidth under 0.1 nm and a temperature wavelength drift of 0.01 nm/°C, the R2T offers consistent multi-mode laser output with minimal noise or instability. Its integration of active cooling and monitoring components supports long-term operational stability critical for demanding applications. The compact footprint reduces thermal mass, enabling rapid thermal equilibration and low power consumption. Users benefit from reduced drift, lower system complexity, and simplified alignment procedures. This performance profile supports high-throughput testing environments and field-portable analytical instrumentation requiring dependable, narrow linewidth sources.


Use Scenarios
Role in Raman Spectroscopy Systems
In precision Raman spectroscopy applications within chemical or pharmaceutical industries, the R2T operates as the core narrow linewidth light source, enabling high spectral purity and reduced background noise. Its stable fiber pigtailed dual-wavelength emission at 784.5 / 785.5 nm and 785 / 1064 nm ensures accurate molecular fingerprinting and reproducible analytical results. The integrated TEC cooler and sensors maintain wavelength integrity under temperature fluctuations typical in laboratory or industrial settings. The module’s compact format facilitates incorporation into handheld or benchtop Raman instruments, supporting seamless optical path integration and enhancing system reliability and measurement precision.

Application in Compact Laboratory Optical Bench Configurations
Within controlled research environments, the R2T serves as a reliable multi-mode laser source for free-space optical bench setups requiring narrow linewidth radiation. Its integrated thermal management and PD photodetector feedback enable precise power and wavelength control essential for experimental reproducibility. The component’s compact form factor reduces spatial footprint on optical benches and expedites alignment tasks by providing stable beam parameters. Researchers leverage this diode laser to support calibration, wavelength stability testing, and the construction of advanced photonic configurations, thereby improving overall laboratory workflow efficiency and experimental accuracy.


FAQ
What wavelengths are available in the R2T fiber pigtailed dual-wavelength narrow linewidth diode laser?
Our R2T diode laser components are available at center wavelengths of 784.5 / 785.5 nm and 785 / 1064 nm, providing flexibility for diverse optical systems requiring stable, narrow linewidth laser light.

Can you customize the output power options for the R2T module?
Yes, the standard CW output powers are continuously adjustable at 600 / 600 mW (784.5 / 785.5 nm) and 500 / 800 mW (785 / 1064 nm). We also offer higher power options upon request to meet your specific performance requirements for the fiber pigtailed dual-wavelength narrow linewidth diode laser.

How does the integrated TEC cooler improve performance in this diode laser?
The integrated TEC cooler, along with PD photodetector and thermistor, maintains stable operating temperature and feedback control, reducing wavelength drift and ensuring consistent output in our R2T fiber pigtailed dual-wavelength narrow linewidth diode laser modules.

What installation support do you provide for integrating these diode laser components into existing optical systems?
We supply detailed technical specifications and assistance to ensure smooth integration of the compact R2T module, designed for easy bench-top alignment and system-level integration in Raman spectroscopy and related applications. Contact us for technical support.

R2T Diode Laser Components, are featured products of RealLight’s NL product line, which can output two wavelengths at the same time and designed for shifted excitation Raman difference spectroscopy (SERDS). With wavelength-locking technique with volume Bragging gratings (VBG) and TE cooling, they deliver stabilized power output,high Side-Mode Suppression Ratio, and low temperature dependence of the lasing wavelength.

R2T Dual-Wavelength Narrow Linewidth Diode Laser Components
APPLICATION

  • Medical application

  • Spectrum analysis
  • Scientific research

KEY FEATURES

  • Compact design

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  • High stability
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  • Excellent reliability

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PRODUCT PARAMETERS
Package Type R2T
Center Wavelength of LD1/LD2(nm) 784.5/785.5 785/1064
Optical CW Output Power / Pop (mW) 600/600 500/800
Wavelength Tolerance (nm) ±0.5
Spectral Width / △λ (nm) <0.1
Temperature Drift of Wavelength / △λ/△T (nm/℃) 0.01
Electrical Threshold Current / Ith(A) 0.4 0.4 0.4 0.4
Operating Current / Iop(A) 1.2 1.2 1.2 1.5
Operating Voltage / Vop(V) 2 2 2 1.8
Slope Efficiency / ηes(W/A) 0.7 0.7 0.7 0.7
PD Parameter / Ipd (μA) <2000
Thermistor / Rt (kΩ/β (25℃)) 10±1%/3450
TEC Max Current Imax (A) 8.5
TEC Max Voltage Vmax (V) 6.7
Fiber Fiber Core Diameter / dcore (μm) 105
Fiber Cladding Diameter / Dclad (μm) 125
Fiber Coating Diameter / Dbuffer (μm) 250
Fiber Length / L (cm) 100±10 (Customizable)
Numerical Aperture / NA 0.22
Connector FC/PC, SMA905

All the data in the above table are the typical values obtained from the tests at room temperature of 25℃, and the final data is subject to the final test report.

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