Active stabilization of laser diode injection using a polarization-spectroscopy technique
OPEN ACCESS
Loading...
Author / Producer
Date
2025-05
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
Laser diode injection-locking is a commonly used method to amplify laser light, while preserving its spectral properties. Fluctuations in the environmental conditions can cause injection-locking to fail, especially when operating with low seed powers or with a swept seed frequency. We present a method inspired by the Hänsch-Couillaud scheme to monitor and actively stabilize the conditions required for injection-locking a laser diode. Using only a few optical components, our scheme can run continuously in the background and is modulation-free. We demonstrate its efficacy by showing its robustness to large fluctuations in diode temperature, seed frequency and power, effectively extending the reliable operating range and stability over time.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
96 (5)
Pages / Article No.
53003
Publisher
American Institute of Physics