Related Experiment Video
Updated: Jan 19, 2026
Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
Published on: April 24, 2014
1550 nm external cavity diode laser with enhanced SMSR based on polarization mismatch by grating rotation
Abstract:
A tunable external cavity diode laser (ECDL) with high side-mode suppression ratio (SMSR) is demonstrated. The ECDL is operated at both strong and weak feedback steady states with single longitudinal mode. Compared with the strong feedback mode, the SMSR of the weak feedback mode is significantly enhanced by rotating the grating along the axis of the incident beam, which changes the polarization orientation versus the grating grooves. The highest SMSR of the weak feedback mode is 54 dB at the injection current of 300 mA. The tunable range of the ECDL with weak feedback mode reaches 130.9 nm.
More Related Videos
Related Concept Videos
09:10Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
14:18Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
05:28Enucleation of the Prostate for the Treatment of Benign Prostatic Hyperplasia Using a 980 nm Diode Laser
01:36Mismatch Repair
07:07Endoscopy Guided Photoablation of Endometrial Cysts using a 980 nm Laser with a Contact Fiber in Mares
07:56A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference