Multifunction double-ring resonant optical comb filter

Yichao Meng; Zhaoming Huang; Lutang Wang

doi:10.1117/12.480553

23 August 2002 Multifunction double-ring resonant optical comb filter

Yichao Meng, Zhaoming Huang, Lutang Wang

Proceedings Volume 4906, Optical Components and Transmission Systems; (2002) https://doi.org/10.1117/12.480553
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

As a kind of optical comb filter, double-ring resonator formed by a 3 x 3 fiber directional coupler can be used in optical communication system. By changing the parameters such as the coupling angle of the directional coupler, physical lengths ofthe double rings, loss, and gain factors. It behaves like a device with multi-function involving multichannel band-pass and band-stop filter, laser resonator or amplifier, optical all-pass filter and so on. In this paper, characteristics of double ring resonator formed by an equal triangle 3 x 3 fiber directional coupler is numerically analyzed in detail, for the double-ring resonator with equal lengths, a minor peak appears near every main resonant peak, they change in reverse dynamically with the increase of the gain coefficient for fixed loss. For unequal lengths case, active cavity brings about clear Vemier effect, and free spectral range (FSR) is increased. At last, applications of this component in the construction of flattop interleaver and dispersion compensator in FDM system are discussed.

Citation Download Citation

Yichao Meng, Zhaoming Huang, and Lutang Wang "Multifunction double-ring resonant optical comb filter", Proc. SPIE 4906, Optical Components and Transmission Systems, (23 August 2002); https://doi.org/10.1117/12.480553

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KEYWORDS

Resonators

Linear filtering

Fiber couplers

Optical filters

Directional couplers

Atrial fibrillation

Fused deposition modeling

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