Introduction to 3GHz Directly Modular Laser

Introduction to 3GHz Directly Modular Laser

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 would like to introduce a heavyweight product that can meet many complex needs – the ROF DML series 3GHz Directly Modular 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.

1. Introduction

The 3GHz DML laser series is a module that integrates lasers, driver circuits, refrigerators, and temperature control circuits. Its core feature is the use of external signal direct modulation, with a wide modulation bandwidth of 50KHz to 3GHz, and only requiring DC+5V power supply. Its design aims to provide a high bandwidth and high sensitivity direct modulation light source solution for simulating RF (radio frequency) signals.

2. Core features and advantages

High bandwidth: Modulation frequency range from 50KHz to 3GHz.

High integration and stability: Built in cooling and temperature control ensure stable output optical power (typical stability ± 0.05 dB/8h), stable mode, and low relative intensity noise.

Compact and easy to use: modular packaging, size 73x60x19.5 mm, single power supply.

Excellent performance: designed specifically for analog signals, with high sensitivity.

3. Key performance parameters

Center wavelength: Provides options of 1310nm or 1550nm.

Output optical power: There are two specifications to choose from: 5mW and 10mW.

Modulation bandwidth (@ 3dB): up to 3GHz.

Interface: The RF input is an SMA-F connector with a standard 50 Ω matching impedance; The optical output can be selected from connectors such as FC/PC or FC/APC, and the fiber can be selected from single-mode (SMF) or polarization maintaining (PMF).

Working conditions: Working temperature range -10 ℃ to 60 ℃, maximum input RF power of 20dBm.

4. Application Fields

This product is mainly aimed at scenarios that require high-quality analog signal transmission, including: analog RF signal transmission links; Clock transmission; Seed light source;

Analog signal transmitter for cable TV (Cable TV).