Home > Laser Diode Drivers > OsTech > LDI-186
$1095.00 sku / item#: LDI-186 ships: In-Stock (USA)
Key Features
- Multiple protection circuits safeguard your laser diode
- Rear panel connector for feedback from external temperature sensor (ie 10K thermistor) with shut-down if laser over-temperature condition is detected
- USB and RS232 interfaces, LabVIEW drivers
- GUI software; Python libraries and terminal control software included
- CW and Quasi-CW (QCW) modes
Product Warranty
All products purchased from Laser Lab Sourceare sold with a full one-year warranty. See terms & conditions for full details.The Laser Lab Source group websites include:- LaserDiodeSource.com
- LaserLabSource.com
- LaserDiodeControl.com
Price and Delivery Quote
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Select Cables and Accessories for this Controller
This cable is also available terminated on the
controller end with a 15-pin d-sub connector (male) and
15-pin d-sub connector (female) on the device-end (kab-231).
This cable is also available terminated on the
controller end with a 15-pin d-sub connector and
unterminated on the device-end (kab-39).
Technical Questions for this Product
ASK AN ENGINEERCustomers Also Considered:
MODEL | LDI-186 |
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PRICE | $1095.00 |
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Product Overview:
LDI Series Laser Diode Driver Modules
The LDI series laser diode diode drivers are precision-engineered to electrically bias laser diodes while protecting them from the common causes of damage which can potentially harm or destroy semiconductor lasers.
Laser Diode Protection Features
These units offer the highest level of commercially available laser diode protection to ensure that your laser is protected from damage. Current and voltage limits, laser diode temperature limit, and a fast shut-down sequence keep your device protected at all times. The following protection features combine to safeguard your laser diode:
Constant Current Source Laser Diode Driver
The LDI series drivers are based on high stability, low-noise current source topology to ensure optimal performance from your laser diode. They provide exceptionally low drift, allowing for consistent and repeatable results. The constant current source topology is based on a precision sense resistor which is placed in series with the laser diode. The voltage across this sense resistor is fed into a differential amplifier, which compares it to the reference voltage. If the measured current deviates from the setpoint, the feedback loop adjusts the control voltage applied to the pass transistor (MOSFET). The transistor acts as a variable resistor, dynamically adjusting to maintain the desired current. The current source automatically adjusts its output voltage to meet the laser's requirements while keeping the current constant.
Modulation, Internal Function Generator and QCW Modes
In addition to CW (continuous wave) mode of operation, the LDI series laser diode drivers offer flexible modulation capabilities and a built-in QCW function generator. The rear panel of the controller has a BNC input for analog or TTL digital modulation inputs with a 10k Ω input impedance. The controller has an internal function generator which can be used to set the quasi-CW (QCW) pulses. In QCW mode, the user can also set QCW pulses from a remote TTL signal source or by using the internal function generator.
RS232 & USB Interfaces | Analog Signal Controls
These driver modules offer multiple user interface options. For remote control, all models come standard with a RS-232 interface and USB adapter. For all models, the LabView GUI (included) makes set-up and control of the system fast and simple. An open-source terminal software program is also available for download. The user can also control the unit using analog controls signal inputs available on the rear panel.
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