Abstract
The non-confocal spherical mirror Fabry-Perot resonator is capable of having very high finesse and stability. However, the higher-order cavity modes (HOCM) of the non-confocal resonator must be controlled to attain any useful performance. Precision mode-matching collimators and/or an intra-cavity aperture is suggested and demonstrated here to diminish the HOCM. Mode-matching collimators at both input and output port of the resonator are recommended to achieve higher HOCM depression ratio, better long-term stability and a pigtailed in-line structure. A preliminary filter with mode-matching collimators at both input and output port of the cavity has shown a finesse of 100, HOCM depression ratio of 25 dB, insertion loss of 3.5 dB and a free spectrum range over 40 nm at 1.5 micrometers band.
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 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.
