Abstract
We developed a novel Fabry-Perot interferometer (FFPI) fabricated by glass-ceramic jacketing of single-mode optical fiber. It was demonstrated that the FFPI shows a narrow-band transmission spectrum with no peak splitting. This indicates that birefringence in the FFPI is maintained at the same level as bare optical fiber due to its adhesive-free highly concentric structure. We also developed an atherrmal packaging system for the FFPI that suppresses temperature dependence of the transmission peak wavelength to a level less than one-tenth that of the FFPI without packaging. The FFPI can be applied to narrow-band optical wavelength filters, which enables passive alignment with optical fiber networks without the need for complicated optical connecting systems.
