Use of a Microcontroller for Fast Feedback Control of a Fiber Laser

2009/05/15 by Matthew Dietrich, M. R. Dietrich, Dietrich, M. R. +2
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Fiber Optic Sensors #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Semiconductor Lasers and Optical Devices #physics.atom-ph

paper · pdf · doi:10.48550/arxiv.0905.2484

arxiv created 2009/05/15 · openalex publication_date 2009/05/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

An inexpensive, easily programmed microcontroller is demonstrated for the fast frequency stabilization of an infrared fiber laser. The microcontroller manages all digitalization and processing, with external circuitry only providing buffering, amplification and overvoltage protection. Several convenient features are included to recover from common failure modes of a laser lock system, and a final Nyquist frequency of 200 kHz is obtained, corresponding to a usable bandwidth of 40-60 kHz.

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