Magazine Article

Tunable Filter Made From Three Coupled WGM Resonators

TBMG-12042

04/01/2006

Abstract
Content

A tunable third-order band-pass optical filter has been constructed as an assembly of three coupled, tunable, whispering-gallery-mode resonators similar to the one described in “Whispering-Gallery-Mode Tunable Narrow-Band-Pass Filter” (NPO-30896), NASA Tech Briefs, Vol. 28, No. 4 (April 2004), page 5a. This filter offers a combination of four characteristics that are desirable for potential applications in photonics: (1) wide real-time tunability accompanied by a high-order filter function, (2) narrowness of the passband, (3) relatively low loss between input and output coupling optical fibers, and (4) a sparse spectrum. In contrast, prior tunable band-pass optical filters have exhibited, at most, two of these four characteristics.

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Citation
"Tunable Filter Made From Three Coupled WGM Resonators," Mobility Engineering, April 1, 2006.
Additional Details
Publisher
Published
Apr 1, 2006
Product Code
TBMG-12042
Content Type
Magazine Article
Language
English