Abstract

Fabry–Perot fiber etalons (FPEs) built from three or more reflectors are attractive for a variety of applications, including communication and sensing. In order to realize a desired transmission profile, usually multistage FPEs are designed with equal cavity lengths followed by a determination of the required reflectivities. As seen in previous works, however, fabricated reflectors may slightly differ from the designs, leading to a departure from the desired transmission profile of the FPE. Here, we show a novel digital synthesis of multistage etalons with off-the-shelf reflectors and unequal lengths of involved cavities. We find that, in contrast to equal cavity lengths, unequal lengths provide more poles in the $z$ domain and hence more flexibility to achieve a desired multicavity FPE transmission response. For given reflectivities and by determining correct unequal lengths of a multicavity FPE with our synthesis technique, we demonstrate two design examples involving free spectral range enhancement and passband shaping. This work is generalizable to ring resonators and mirror- and fiber-Bragg-grating-based cavities, enabling the design and optimization of cavity systems for a wide range of applications, including lasers, sensors, and filters.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Digital sensor based on multicavity fiber interferometers

Ubaid Ullah, Muhammad Yasin, Alper Kiraz, and M. Imran Cheema
J. Opt. Soc. Am. B 36(9) 2587-2592 (2019)

Solid, 3-mirror Fabry–Perot etalon

Mark Stephen, Molly Fahey, and Ian Miller
Appl. Opt. 56(10) 2636-2640 (2017)

Relative-cavity-length-controlled slow light in a cascaded magnon-photon system

Chao-Zhu Liu, Yun-Long Deng, and Miao Yin
J. Opt. Soc. Am. B 37(4) 1127-1132 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription