BOX Optronics Tech’s 1578nm 10mW DFB Butterfly Laser Diode (Model: BFLD-1578-10SM-FA) is a high-performance optical device built on multi-quantum well (MQW) distributed-feedback (DFB) technology, engineered for precision and reliability in professional optical applications. It features a fixed 1578nm center wavelength (±1nm tolerance at 15~35℃ laser temperature) and a stable 10mW optical output power, paired with industry-standard 14PIN butterfly packaging integrated with a built-in thermoelectric cooler (TEC) and optical isolator for optimal thermal control and optical isolation (≥30dB at -10~70℃). 

Boasting excellent electro-optical characteristics, this laser diode delivers a narrow spectral linewidth (≤3MHz FWHM), high side-mode suppression ratio (≥35dB CW), and low relative intensity noise (-145dB at 5mW CW output), ensuring superior signal quality. It has a typical threshold current of 10mA, operating current of 120mA at rated power, and a 2.5GHz -3dB bandwidth, balancing efficiency and high-speed performance. With a 25-year lifetime wavelength drift of only ±0.1nm, it offers long-term stability for critical applications.

Configured with SMF-28e single-mode fiber, 900μm loose tube pigtail (1.0±0.1m) and FC/APC connector, it supports two PIN-OUT configurations for flexible system integration. Ideal for fiber optic sensors, C/DWDM systems and laser sources, it operates in -20~70℃ case temperature and stores in -40~85℃, with robust environmental adaptability to meet industrial and laboratory application demands.