Abstract
The purpose of this paper is to develop a low-cost semiconductor laser frequency standard around 633 mm based on digital signal processing techniques. This standard sweeps the frequency of the laser by means of the injection current in order to measure some linear absorption transitions of iodine (/sup 127/I/sub 2/). It identifies those lines by using a reference table of known transitions of the iodine vapor and then automatically locks the frequency of the laser on a selected transition. A microcontroller and a digital signal processor are used to perform those functions. The effects of laser temperature, mode jumps, and transition linewidth are considered for successful operations. It is demonstrated that this system can automatically lock a 633 nm semiconductor laser on the P(33) 6-3 transition of iodine.
Sign-in/Register to access full text options 
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 callMore From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: 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.
