Abstract

Ring resonators are promising building blocks for developing compact optical filters with arbitrary functions; however, a major challenge for planar waveguide filter implementations is to overcome the limited free spectral range (FSR) for a given core-to-cladding refractive-index difference Δ while maintaining low loss and a large range of coupling ratios. The loss and coupling of rings operating in the whispering-gallery-mode regime were investigated by use of Ge-doped silica waveguides with a low refractive-index difference Δ=0.75%. A FSR of 12  GHz with a loss of 0.36 dB/cm was demonstrated with coupling ratios of 30% (41% optimum).

© 1998 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Enhancement of free spectral range using pentuple microresonator

Sabita Brata Dey, Sanjoy Mandal, and Narendra Nath Jana
Appl. Opt. 51(29) 6901-6912 (2012)

How small can a microring resonator be and yet be polarization independent?

Thomas Yong Long Ang, Soon Thor Lim, Shuh Ying Lee, Ching Eng Png, and Mee Koy Chin
Appl. Opt. 48(15) 2821-2835 (2009)

Multistage dispersion compensator using ring resonators

C. K. Madsen, G. Lenz, A. J. Bruce, M. A. Capuzzo, L. T. Gomez, T. N. Nielsen, and I. Brener
Opt. Lett. 24(22) 1555-1557 (1999)

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Figures (3)

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

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

Equations (1)

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

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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