Explore Our Laser Diode Drivers: The Perfect Fusion of High Precision and Versatility

In today's era of widespread laser technology application, laser diode drivers, as core supporting equipment, directly affect the stability, accuracy, and service life of laser systems. As a renowned brand focusing on optoelectronic devices, we have launched a series of high-performance laser diode driver product lines, including ST-LDD, ST-LDDJ, STYA, STJ, STM, STO-LDD, and more. These lines meet the diverse needs of various scenarios such as laboratory R&D, industrial production, and medical equipment.

ST-LDD Series: The Choice for Basic Stability

The ST-LDD series laser diode drivers are centered on the core advantage of high-stability constant current output. They do not include Thermoelectric Cooler (TEC) control functions, focusing solely on meeting the basic driving requirements of laser diodes. This series supports continuous adjustment of output current and voltage, equipped with two digital meters for real-time display of operating parameters, enabling intuitive monitoring for users.

It features comprehensive core protection functions, including transient suppression, over-temperature protection, short-circuit protection, and over-current limiting, effectively preventing laser diodes from damage due to abnormal operating conditions. The input voltage is compatible with a wide range of 220VAC±15%, with voltage noise below 0.1% p-p and current stability better than 0.1%, ensuring the purity of output signals. The series includes multiple models such as ST-LDD3012 and ST-LDD6060, with output current ranging from 0-60A and voltage from 0-120V, allowing flexible selection based on the power requirements of diode modules.

ST-LDDJ Series: Integrated All-in-One Solutions

The ST-LDDJ series adopts an integrated design combining "system controller + diode driver + TEC controller", available in two form factors: OEM 19-inch rack-mounted and desktop. It is suitable for integration into industrial systems and standalone laboratory use alike. This series supports simultaneous driving of one laser diode and one TEC cooler, achieving synchronized optimization of laser output and temperature control.

Output current can be flexibly controlled via internal operations or external devices. Some models support PWM modulation output and are equipped with an RS232 port for remote communication with computers through STXFMate software. The temperature control accuracy reaches 0.01℃, combined with interlock protection and over-temperature protection functions, providing comprehensive safety guarantees for laser diodes. The series offers a rich range of models, with maximum output power up to 1800W, output current up to 60A, and voltage covering 2V-72V, compatible with various devices such as DFB lasers and TO lasers.

STYA Series: High-Precision, Multi-Functional Flagship Model

With ultra-low current ripple and ultra-low temperature drift as core advantages, the STYA series laser diode drivers are the preferred choice for high-precision application scenarios. This series adopts PWM conversion technology with a maximum conversion efficiency of 88%, supporting three control modes: local panel control, external device control, and RS232 remote computer control for flexible and convenient operation.

It boasts a comprehensive protection mechanism including over-current, over-voltage, over-temperature, and anti-static protection, equipped with an emergency stop button and status indicator LEDs to ensure operational safety. The series covers multiple types: desktop (SY) for standalone laboratory use, external (WZ) for integration into large equipment, TT type for both standalone use and system integration, and WK type specifically designed for TEC cooler temperature control. Output parameters range from 3.5V-30.5V in voltage and 8A-100A in current. Some models support dual TEC temperature control and acousto-optic Q-switch control, meeting the needs of complex laser systems.

STJ Series: Modular Design and High-Power Dual Track

The STJ series is characterized by modular design and high-power output, divided into three categories: intelligent modular type, high-power type, and dual-channel TEC control type. The intelligent modular type features a compact size (170×320×75mm or 220×320×75mm) with a maximum output current of 300A, supporting customized pulse functions (≤10Hz), suitable for high-precision applications with limited space. The high-power type adopts standard 2U/3U rack dimensions, with output power ranging from 300-3000W, compatible with industrial-grade high-power laser diodes.

The entire series is equipped with adaptive load functionality, real-time displaying voltage, current, and power parameters, along with 16-bit LED digital tubes and membrane keys for a user-friendly operation interface. It supports both local and remote control, built-in with over-temperature, over-current protection, and alarm signal interfaces (such as water pressure alarm). With current stability better than 0.1% and voltage noise ≤0.1% Vp-p, it ensures reliability during long-term operation. The dual-channel TEC control type is specifically designed for complex systems requiring precise temperature control, further expanding application scenarios.

STM Series: High-Precision Controllers for Laboratory Use

The STM series focuses on laboratory testing scenarios, renowned for ultra-high precision and convenient operation. Models STMBL1500A/B are specifically designed for 14-pin butterfly-packaged laser diodes, integrating a high-stability current source (accuracy 0.01mA), TEC temperature controller (accuracy 0.01℃), and azimuth ZIF socket, compatible with laser diodes from well-known brands such as II-VI and Eblana Photonics.

Model STG-EM595 features a 4.3-inch TFT touchscreen, supporting two operating modes: constant current and constant power. It offers a laser driving current of 1.5A and a TEC control current of 3.0A, with a temperature control accuracy of 0.01℃. Combined with low-noise design, it is an ideal choice for testing DFB lasers and single-mode lasers. The STM-MBH series focuses on high-power, high-precision driving, with a maximum output current of 250A and voltage up to 40V. It has a current setting accuracy of ±1% (for outputs above 5A), built-in multiple protections such as soft start, over-temperature, and over-current, and supports USB 2.0 digital control and parameter storage functions.

STO-LDD Series: OEM Drivers for Industrial and Medical Applications

The STO-LDD series is specifically designed for industrial and medical applications, adopting an OEM modular structure. It covers a maximum output power range of 50W-1500W and output current of 5A-100A, suitable for laser diode array driving needs. This series offers an efficiency exceeding 80%, with current rise/fall time <1ms (customizable to <500μs), current regulation accuracy and error both <1% IMAX, and overshoot <1% IMAX, meeting the high responsiveness and consistency requirements of industrial production.

It excels in safety performance with a power factor >0.98, input-output isolation voltage of 4000VAC, compliance with IEC60950, IEC60601-1 safety standards, and EN55011 EMC standards, along with a leakage current <150μA. Equipped with a 15-pin D-Sub interface, it supports 0-10V analog signal control and monitoring, with built-in functional pins for enable, fault, and interlock, facilitating integration with industrial control systems. No additional cooling equipment is required, and it adapts to industrial environments ranging from 0-40℃.

Common Advantages and Customization Services

All our laser diode driver series share the following core advantages: adoption of advanced power electronic devices and microprocessor control technology to ensure high stability and low-noise output; comprehensive protection mechanisms providing multiple safety guarantees for laser diodes; flexible control methods supporting local, remote, and external device control; and standardized interface design enabling convenient system integration and operation.

For special requirements, we also offer customization services. We can adjust output voltage, current, and power parameters according to user needs, customize pulse functions, control interfaces, and physical dimensions, meeting the personalized application scenarios of different industries. From laboratory R&D to industrial mass production, from low power to high power, and from basic driving to complex integration, our laser diode drivers, with their precise control, reliable performance, and abundant options, have become a trusted partner in laser technology applications.

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