A brief introduction to Direct Modulation Laser

A brief introduction to Direct Modulation Laser

Direct Modulation Laser (DML Laser) achieves light intensity modulation by directly controlling the driving current of the laser. DML laser has the advantages of simple structure, low cost, and easy integration, and is mainly used in short-range communication scenarios with transmission distance ≤ 10km, such as 5G fronthaul and data center interconnection (100m-10km).

In the current era of rapid technological development, the demand for high-performance lasers is increasing in many fields. Whether pursuing efficient and stable signal transmission or demanding precision sensing technology, an excellent laser is crucial. Today, we are going to introduce a heavyweight product that can meet many complex needs – the ROF-DML series 3GHz Direct Modulation Laser module. It cleverly integrates a laser, driver circuit, built-in cooler, and temperature control circuit, and this highly integrated design greatly enhances overall performance. Its modulation bandwidth can reach 50KHz to 3GHz, requiring only DC+5V power supply. The structure is extremely compact and adopts module packaging. Not only is the mode stability excellent, but the relative intensity noise is low, and the output optical power is also very stable. With its high bandwidth and high sensitivity RF signal modulation characteristics, it undoubtedly becomes the best choice for analog RF signal direct modulation light sources. Do you want to know how it shines in practical applications? Come and delve deeper with us.

The DML series 3GHz Direct Modulation Laser module integrates the laser, driver circuit, built-in cooler, and temperature control circuit; This light source has a modulation bandwidth of 3GHz, excellent mode stability, low relative intensity noise, and good output power stability. The high bandwidth and high sensitivity RF signal modulation characteristics make ROF DML laser products the best choice for analog RF signal direct modulation light sources.

Product features: Modulation bandwidth of 50KHz~3GHz; Built in refrigerator and temperature control circuit; Compact structure, module packaging with DC+5V power supply
Application areas: Simulating RF signal transmission links; Clock transmission; Seed light source; Cable TV analog signal transmitter