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Open-source lab hardware: Driver and temperature controller for high compliance voltage, fiber-coupled butterfly
Florian Kehl1,2,3,4, Vlad F Cretu1, Peter A Willis1
1NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
Hardwarex
|May 24, 2022
Summary
We developed a low-cost, high-compliance voltage laser driver with integrated temperature control for stable optical output. This compact system protects laser diodes and offers manual or microcontroller-based operation.
Area of Science:
- Electronics Engineering
- Photonics
- Instrumentation
Background:
- Stable optical laser output is critical for various scientific and industrial applications.
- Existing laser drivers can be expensive, bulky, or lack precise control.
- Integration of temperature control is often necessary for optimal laser performance.
Purpose of the Study:
- To develop a compact and cost-effective laser driver system.
- To provide a stable and precisely controlled optical laser output.
- To enhance laser diode longevity through integrated protection mechanisms.
Main Methods:
- Design and implementation of a high-compliance voltage laser driver circuit.
- Integration of a high-precision temperature controller compatible with thermoelectric coolers.
- Development of manual and microcontroller-based control interfaces.
- Incorporation of an adjustable over-current protection circuit.
Main Results:
- A functional prototype of a compact, low-cost laser driver was successfully developed.
- The system demonstrated stable optical laser output.
- Integrated temperature control maintained precise laser operating conditions.
- Over-current protection effectively safeguarded the laser diode.
Conclusions:
- The developed laser driver offers a versatile and reliable solution for applications requiring stable optical output.
- The integrated features provide enhanced control, protection, and ease of use.
- This system presents a valuable advancement in laser driving technology for diverse fields.
