LDD-1321
Low current CW Laser Diode Driver with Laser Power Control [LPC optional]
0-1.5 A / 0-14 V
Prices for multiple units
For more than 10 units,
please request a quotation
Also interesting! The LDD-1321 has connections for our plug-in TEC Driver board PWR-1191 (±4 A / ±20 V). This board features a bidirectional current driver, which enables the TEC Controller functionality of the whole device.
If you are interested in the LPC (Laser Power Control) option, please contact our sales team. The LDD-1321 provides photodiode inputs from 0.5 to 4 mA (depending on the configuration).
Detailed Description | LDD-1321 | Laser Diode Driver
The LDD-1321 provides precise and consistent output current and voltage. While the configuration is
fully digital, the LDD-1321 is equipped with many safety features, including two inputs for laser
diode temperature monitoring, making it very user friendly. The LDD-1321 is also easy to integrate into an
existing system as it provides both digital and analog ports for high connectivity, and supports the
MeCom interface protocol, for which we offer free
computer software solutions on our website. No extensive programming skills are required - the
interface and software are easy to use and set up.
In addition, the laser diode module is equipped with connectors designed for seamless integration with our
PWR-1191 plug-in TEC Driver board. This board features a bi-directional current driver that enables
full TEC Controller functionality for the entire device, providing you with an excellent combination for a
safe and stable laser application.
Low-current laser diode drivers such as the LDD-1321 are extremely versatile. Their applications range from medical and cosmetic devices (ophthalmology, laser hair removal) to telecommunications and entertainment (laser light shows). Other applications for our LDD-1321 include:
- Medical Devices
- Fiber Optic Communication
- Laser Printing and Scanning
- Material Processing
- Biotechnology and Spectroscopy
- Scientific Research
If you have further questions about applications or compatibility, please contact our support. Pre- or post sale, doesn't matter: We are happy to help you!
Free functions for Laser Diode Drivers (included)
Control and regulation
- PID-controlled current source
- Constant current (CW) control mode
- Integrated signal generator: waveforms, pulse modulation, lookup table (LUT)
- Integrated TEC control (depending on model)
- Customizable control and monitoring functions
- Remote control and monitoring via standard interfaces
- Free desktop software included (for easy commissioning, control, monitoring and firmware updates)
Monitoring and safety functions
- Temperature measurement and monitoring
- Light output measurement via photodiode
- Data logging (temperature, current, light output)
- Monitor Data Logger
- Protection mechanisms: Overcurrent protection, overtemperature protection, overvoltage protection, interlock
- Status and error flags
Communication and integration
- Stand-alone operation possible
- Communication via USB, RS485, RS232, CANopen (depending on model)
- Analog inputs and outputs (depending on model)
- 5V voltage output for powering small circuits (depending on model)
- PWM fan control (depending on model)
- MeCom Device Server as a .NET-based interface between Meerstetter devices and various master applications
- Fast system integration thanks to comprehensive documentation
- Significant system simplification thanks to integrated functions
Digital inputs/outputs (GPIOs) and system control
- Versatile GPIO functions such as status displays, external pulse control, fan and pump control, device activation, address configuration, temperature stability display and more - depending on the device model.
Paid features for Laser Diode Drivers (optional)
- Light Power Control (LPC): Control of the optical output power instead of the current: The laser diode output power is measured and controlled using a photodiode.
- Feedforward Control: Combination of feedback and Feedforward Control: This function compensates for non-linear effects and load fluctuations and thus improves the control quality, especially with rapid load changes.
Further benefits and added value
- 30 years of experience: proven technology you can rely on
- Swiss quality and precision
- Delivery from stock
- Long-term product availability of hardware and software
- Personal, direct technical support from Meerstetter engineers
- Flexible adaptations and customer-specific solutions
- Support with application development and system integration
- Regular further development and maintenance of products
Technical Data | LDD-1321 | Laser Diode Driver
| Supply Voltage | 12 - 24 V DC |
| Supply Current | max. 7 A DC (fused) |
| Output Voltage | 0 - 14 V |
| Output Current | 0 - 1.5 A |
| CW / Modulated Current: | |
| - CW Current Control | Configurable PID |
| - CW Current Resolution | 0.1 mA |
| Communication Interfaces | USB, RS485, RS232 TTL, CANopen |
| Configuration / Diagnosis | via Communication Interfaces and PC software (free of charge) |
| Efficiency | t.b.a. |
| Dimensions (L x W x H) | 90 mm x 90 mm x 20 mm |
| With Plug-in TEC Controller Board: | PWR-1191 |
| - TEC Output Current | ±4 A |
| - TEC Output Voltage | ±20 V |
Trial Device | LDD-1321 | Laser diode driver
Discover the advanced capabilities of the LDD-1321 Laser diode driver with an 8-week trial opportunity.
This program offered by Meerstetter Engineering gives technical developers and other interested people the chance to explore the cutting-edge laser driver LDD-1321 in real-world applications. Ensuring seamless integration and optimized performance for demanding fields such as medical technology, spectroscopy, quantum research, and telecommunications.
By testing the devices firsthand, integrators can
- reduce uncertainties,
- validate the compatibility with the planned system, and
- move the project forward.
The conditions are as follows:
- 8 weeks trial period
- Device provided free of charge by Meerstetter Engineering
- Shipping costs to be covered by the customer
To start your trial period, simply reach out to our sales team. Let us help you turn your project into reality.
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Shop Information
- Payments by credit card or by invoice
- Cheques are not accepted
- For more than the maximum number of units please request a quotation
- Usually all products ship within 3-5 days
- All prices excl. VAT (unless otherwise stated)
- Additional to the shipping costs (only if sent with our account), there are duties and taxes to be paid by the recipient
- The products are shipped worldwide