Powering the Future of Dense Wavelength Division Multiplexing – The DWDM DFB Laser
As global data traffic continues its exponential growth, network operators are increasingly turning to Dense Wavelength Division Multiplexing (DWDM) to maximize the capacity of their fiber infrastructure. NEON addresses this critical need with its NY55D series, a high-power DWDM DFB laser designed specifically for demanding CATV and DWDM network applications.
The DWDM DFB laser from NEON is characterized for use as a wavelength-selected, high-power optical source in combination with external modulators in CATV and DWDM networks, particularly for super trunking and distribution applications. This specialized design ensures that the laser delivers the precise wavelength stability and optical power required for dense wavelength division multiplexing systems, where channel spacing is extremely tight and wavelength accuracy is paramount.
One of the most remarkable features of theNY55D series DWDM DFB laser is its exceptional optical output power, reaching up to 100 mW. This high power is essential for overcoming the losses inherent in long-haul fiber transmission and for driving external modulators that shape the optical signal for DWDM transmission. The selected wavelengths comply with ITU Grid recommendations, both in range and in channel definition, ensuring compatibility with standard DWDM systems. Available in multiple power versions—40 mW, 50 mW, 63 mW, 80 mW, and 100 mW—the NY55D series offers flexibility to match specific system requirements.
The NY55D series DWDM DFB laser is equipped with polarization-maintaining (PM) fiber and is DC-coupled with a built-in TEC, thermistor, and monitor photodiode. The device is mounted in a 14-pin, OC-48 pin-out compatible butterfly package with an optical isolator inside the package. This comprehensive integration ensures that the laser maintains stable operation across varying environmental conditions, with the TEC providing precise temperature control essential for wavelength stability in DWDM applications.
The applications for NEON's DWDM DFB laser extend across multiple domains. In DWDM networks, these lasers serve as the foundation for high-capacity transmission systems. In CATV networks, they enable the distribution of video content over fiber with the high quality required for modern television services. Free space optics applications benefit from the high power and wavelength stability of these lasers, enabling communication links where fiber installation is impractical.
Performance specifications for the NY55D series are exceptional. The relative intensity noise (RIN) is maintained below -160 dB/Hz, ensuring clean signal quality. Side-mode suppression ratio exceeds 30 dB, guaranteeing that the laser operates on a single wavelength without interfering with adjacent channels. The polarization extinction ratio exceeds 17 dB, critical for systems that rely on polarization control. Wavelength drift over the operating temperature range is limited to 40 pm, ensuring stable operation across temperature variations.
NEON's commitment to quality is reflected in every DWDM DFB laser it produces. The company's ISO 9001 certification, combined with its adoption of Six Sigma and Lean manufacturing principles, ensures that each laser meets the highest standards of precision and reliability. For network operators seeking to maximize the capacity of their fiber infrastructure, NEON's DWDM DFB laser represents a proven, high-performance solution.