Distributed Feedback Laser (DFB)
Distributed Feedback Laser (DFB) is an edge-emitting semiconductor light source. Compared to FP Lasers and DBR Lasers, Distributed Feedback Lasers (DFB) are much more stable and generate a clean single mode output. This is achieved by the inclusion of a diffraction grating along the active region of the chip. Inphenix’s Distributed Feedback Laser (DFB) have a simple and low-cost fabrication process and have many advantages, such as very high side mode suppression ratio, stable operation over a broad temperature range, narrow linewidth and low sensitivity to optical feedback.
Distributed Feedback Laser (DFB) provides excellent performance in various applications, offering narrow linewidth, high side mode suppression ratio, and low sensitivity to optical feedback. Known for its stability, Distributed Feedback Laser (DFB) technology by InPhenix ensures clean single mode output with very high side mode suppression ratio, ideal for diverse technical applications.
Renowned for its stability and clean mode, Distributed Feedback Laser (DFB) technology by InPhenix is essential in technical fields requiring high precision. InPhenix sets the Distributed Feedback Laser (DFB) standard, providing high side mode suppression for applications where precision is paramount. Explore our broad product range today.
Window(nm)
From: To
|
Peak Wavelength(nm) |
Threshold Current(mA) |
Output Power(mW) |
Operation Current(mA) |
Side Mode Suppression Ratio(dB) |
Spectrum Width(rms)(nm) |
Linewidth(kHz) |
Part Number |
|---|---|---|---|---|---|---|---|---|
| Window(nm) | Peak Wavelength(nm) | Threshold Current(mA) | Output Power(mW) | Operation Current(mA) | Side Mode Suppression Ratio(dB) | Spectrum Width(rms)(nm) | Linewidth(kHz) | Part Number |
| 1310 | 1290 to 1330 | <20 | >8 | <80 | >35 | <0.2 | IPDFD1301* | |
| 1520 | 1505 to 1523 | <20 | >5 | <100 | >35 | <0.2 | IPDFD1501 | |
| 1550 | 1530 to 1570 | <20 | >5 | <120 | >35 | <0.2 | IPDFD1502 | |
| 1550 | 1540 to 1560 | <20 | >20 | 250 | >35 | 50 | IPDFD1503 | |
| 1660 | 1650 to 1670 | <20 | >3 | <80 | >35 | <0.2 | IPDFD1601 |
Design and Functionality
The diffraction grating in Distributed Feedback Laser (DFB) plays a crucial role in ensuring the laser emits at a single wavelength, which is essential for applications requiring high precision. The grating provides feedback at the lasing wavelength, while suppressing other modes, resulting in a high SMSR. This feature is particularly important for applications such as optical coherent tomography (OCT), where accurate and stable wavelength output is critical. The high SMSR minimizes noise, ensuring a cleaner signal, which enhances the overall performance of the laser. Get the most precise results with our high-quality, low-sensitivity Distributed Feedback Laser (DFB) technology by InPhenix, designed for optimal performance in technical applications.
Applications
Distributed Feedback Lasers (DFB) are used in various applications that demand high precision and stability. Some of these applications include:
- Optical Coherent Tomography (OCT): The precise wavelength control and stability of Distributed Feedback Laser (DFB) make them ideal for OCT, a non-invasive imaging technique used in
medical diagnostics, particularly in ophthalmology. - Telecommunications: The narrow linewidth and high stability of Distributed Feedback Lasers (DFB) are essential for high-speed data transmission over long distances in fiber optic communications.
- Spectroscopy: Distributed Feedback Laser (DFB) ‘s ability to emit a stable single wavelength makes them suitable for high-resolution spectroscopic applications.
- Sensing: Their narrow linewidth and low noise characteristics are beneficial in
various sensing applications, including environmental monitoring and gas
sensing.
Advantages of Inphenix’s Distributed Feedback Laser (DFB)
Inphenix’s Distributed Feedback Laser (DFB) stands out due to their simple and low-cost fabrication process, making them an advantageous choice for various applications in optical coherent tomography. These lasers offer precise wavelength control and are available in multiple configurations to meet specific operational requirements, such as peak wavelength, threshold current, and output power. Their robust performance and cost-effectiveness make them a preferred option for researchers and engineers in the field.
- Fabrication Process: The straightforward and cost-effective manufacturing process of Inphenix’s Distributed Feedback Laser (DFB) allows for large-scale production without compromising on quality.
- Customization: Inphenix provides Distributed Feedback Lasers (DFB) in various configurations, allowing users to choose the appropriate specifications for their specific needs.
- Performance: With features such as narrow linewidth, high SMSR, and stable operation
over a wide temperature range, Inphenix’s Distributed Feedback Lasers (DFB) deliver exceptional performance.
Technical Specifications
The technical specifications of Distributed Feedback Lasers (DFB) from Inphenix include:
- Wavelength Range: Distributed Feedback Lasers (DFB) can be designed to operate at various wavelengths, tailored to the specific application needs.
- Narrow Linewidth: Essential for high-precision applications, the narrow linewidth ensures minimal spectral width.
- High SMSR: This ensures that the laser output is predominantly in a single mode, reducing noise and improving signal quality.
- Output Power: Configurable output power levels to suit different application requirements.
