Abstract

A novel method to determine the linewidth of a semiconductor laser is described. By measuring the noise voltage at the electrical terminal, the electron density variations in the gain medium can be determined. Since these variations are the major cause of the linewidth of semiconductor lasers, both the linewidth and the lineshape can be determined from electrical measurements if the α-parameter is known and the parasitic impedances of the laser are small.

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 call

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.