The Narrow Linewidth DFB Butterfly Laser Diode BNLD-1550-40PM-FA1 from BOX Optronics is a high-performance laser designed for precision applications in optical fiber communication and microwave photonics.

This laser features a unique single DFB chip with advanced packaging technology, ensuring low linewidth and relative intensity noise. The device is housed in a standard 14-pin butterfly package, offering high output power and exceptional stability. With a center wavelength of 1550 nm and an output power of 40 mW, it is ideal for applications requiring high precision and reliability. The electro-optical characteristics of the BNLD-1550-40PM-FA1 are optimized for superior performance.

The laser operates within a temperature range of 15 to 35°C, with a linewidth of 200 to 600 KHz and a relative intensity noise (RIN) of -135 dB/Hz. The polarization extinction ratio (PER) is 18 dB, and the side mode suppression ratio (SMSR) is 40 dB, ensuring high signal purity. The wavelength temperature coefficient is 0.1 nm/℃, and the wavelength current coefficient is 0.003 nm/mA, providing stable operation over a wide range of conditions. The mechanical design of the BNLD-1550-40PM-FA1 is robust and user-friendly.

The fiber specifications include a PM fiber with a 900μm loose tube and a pigtail length of 1.0±0.1 meters, terminated with an FC/APC connector. The package dimensions are 20.8±0.2 mm by 30±0.2 mm, and the pin-out design is available in two types to meet different integration needs. This laser diode is suitable for applications such as coherent detection and microwave photonics, making it a versatile component for advanced optical systems.