Abstract
Synchronous tuning can extend the mode-hop-free (MHF) tuning range of external-cavity diode lasers (ECDLs) without antireflection coating. However, due to nonlinearities in the internal and external cavities of ECDLs, the synchronous tuning ratio is not constant, causing detuning, which limits the MHF tuning range. To solve the nonlinearity mismatch between the two cavities, the nonlinearity of the internal cavity is identified and a correction model for the both cavities based on a mapping method is established. Further, the zero-vibration-derivative (ZVD) method is applied to optimize the dynamic response of the system. Experimental results show that MHF tuning in the full scanning period is achieved, and the optical frequency shows good linearity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
