Wavelength-stabilized laser diodes are a type of laser diode that maintains a stable output wavelength over time. This is achieved by incorporating a wavelength-selective element into the laser diode, which ensures that the output wavelength does not drift due to changes in temperature or drive current.
Learn More About Wavelength-Stabilized Laser Diodes
Wavelength-stabilized laser diodes are designed to provide a stable, narrow linewidth output. This is particularly important in applications where precise control of the output wavelength is required. The wavelength-selective element in the laser diode, often a diffraction grating (distributed feedback – DFB) or a volume Bragg grating (VBG), reflects only a specific wavelength back into the laser’s active region, stabilizing the output wavelength.
Distributed Feedback (DFB) Laser Diodes operate with a periodically structured element or diffraction grating in the device’s active region. This structure provides optical feedback for the laser, ensuring its operation on a single longitudinal mode, which results in a narrow linewidth. Known for their high wavelength stability, DFB laser diodes are widely used in applications requiring high spectral purity and stability.
Volume Bragg Grating (VBG) Laser Diodes use a Bragg grating to achieve high spectral purity and wavelength stabilization. Integrating a VBG into a laser diode introduces additional optical feedback, compelling the diode laser to emit light within the narrow optical bandwidth determined by the VBG.
One of the main benefits of wavelength-stabilized laser diodes is their high spectral purity. Because the output wavelength is stabilized, these devices can deliver a narrow linewidth output, essential in applications such as spectroscopy and telecommunications.
Another advantage of wavelength-stabilized laser diodes is their stability over time. Unlike non-stabilized laser diodes, which can exhibit wavelength drift due to temperature or drive current changes, wavelength-stabilized laser diodes maintain a constant output wavelength. This makes them ideal for applications that require long-term stability.
Our Wavelength-Stabilized Laser Diode Products
RPMC provides a wide array of Wavelength-Stabilized Laser Diodes, designed for various applications across industries such as Defense & Aerospace, Industrial & Manufacturing, Medical & Healthcare, and Research & Biophotonics. These laser diodes, utilizing advanced Distributed Feedback (DFB) and Volume Bragg Grating (VBG) technologies, offer high spectral purity and wavelength stabilization, making them ideal for applications requiring precise control over the laser’s output wavelength. With a variety of packaging options available, we’re confident that our selection of standard and customizable products will meet your specific application needs.
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Wavelength-Stabilized Laser Diode Applications
Wavelength-stabilized laser diodes are used in a wide range of applications. Their high spectral purity and stability make them ideal for spectroscopy applications, where a stable, narrow linewidth light source is required to measure the absorption or emission spectra of different materials accurately. They are also used in telecommunications, where their stable output wavelength allows for precise control of the transmitted signal. In addition, wavelength-stabilized laser diodes are used in sensing applications, such as gas sensing and environmental monitoring, where the ability to measure the absorption of light at specific wavelengths accurately is crucial.
Telecommunications: Wavelength-stabilized lasers are used in fiber-optic communication systems where the wavelength of the laser needs to remain stable to minimize the effects of fiber dispersion.
Spectroscopy: These lasers are used in precision spectroscopy, including gas sensing and molecular spectroscopy, where the precise detection and measurement of various gases or molecules are required.
Medical Diagnostics: In the medical field, these lasers are used for diagnostic purposes, serving as pump lasers for non-linear frequency conversion (second harmonic generation) to pump solid-state fs-laser devices.
Research & Biophotonics: They are used in research applications such as atom/ion cooling, Bose–Einstein condensates, atom interferometry, quantum memory, and molecular spectroscopy. In biophotonics, they are used for applications like Raman spectroscopy, confocal microscopy, interferometry, bioinstrumentation, and cytometry.
High-Energy Laser Systems: In defense and aerospace industries, these lasers are used in high-energy laser (HEL) systems, where pumping at specific wavelengths is crucial for suppressing nonlinear effects.
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Alternatively, use the filters on this page to assist in narrowing down the selection of stabilized laser diodes for sale. Also, head to our Knowledge Center with our Lasers 101 page and Blogs, Whitepapers, and FAQ pages for further, in-depth reading.
The R series of wavelength-stabilized single-mode and multimode laser diodes offer narrow linewidth output in wavelengths from 633nm thru 1064nm, with output powers up to 5 W. This highly customizable series offers package options ranging from components as basic as a TO-56 or 14-pin BF packaged diodes to OEM modules, including electronics, to UL/CE and IEC-certified turn-key systems. The R series is the perfect source for various markets, including chemical analysis, bio-medical, fiber laser, and scientific applications.
The REP series includes high-performance, tunable, single-frequency (DFB-like) diode lasers and Fabry-Perot laser diodes in wavelengths from 1270nm thru 2350nm, designed to address challenges in Gas Sensing, LIDAR, Spectroscopy, and Telecom. The REP series includes high-power and narrow linewidth options, covering various product ranges at the most popular wavelengths, providing customizable units with multiple packaging options, including the Fiber coupled 14-pin butterfly, TO39 (w/TEC), and TO56. For a complete module incorporating the fiber-coupled butterfly package with an integrated current driver and TEC controller, designed for ease of operation, it is the ideal platform for high stability gas detection or remote sensing. See the DX1 Series.
The RPK Series of multiple, single-emitter fiber-coupled diode lasers are available in wavelengths from 405nm thru 1550nm with up to ≈ 500W output power. Our specialized fiber-coupling techniques ensure high efficiency, stability, and superior beam quality, while rigorous inspections and burn-in procedures guarantee each product’s reliability, stability, and long lifetime. Highly customizable packages allow us to meet our customers’ specific needs, providing high-quality products at reasonable prices.
The RWLP series offers an affordable and versatile solution for your laser application needs with single-mode and multimode options and wavelengths from 405nm thru the IR region. With customizable options, our team can work with you to solve any challenges you may face. Rigorously tested for long-term reliability, the RWLP series ensures consistent performance and high beam quality. Perfect for integration, this series supports multiple applications including biological and analytical instrumentation.
The uniMir Series is a long-wavelength, single-frequency, DFB, CW Quantum Cascade Laser based on proprietary technology. The technology’s versatility allows them to address any wavelength between 10 and 18µm in CW and up to 21µm in pulsed mode. Now commercially available in a sealed High Heat Load (HHL) package, with integrated collimating lens, thermistor, and thermoelectric cooler (TEC), well suited for integration into systems, or as a stand-alone turnkey system for R&D and detection applications.