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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Mizuno, T. Saida, T. Kitoh, T. Shibata, T. Inoue, Y. |
| Copyright Year | 1983 |
| Abstract | The principle of the transversal interleave filter previously proposed as a novel class of interleave filter is described. The principle of a conventional 1 /spl times/ 1 coherent optical transversal filter is reviewed. Then, the fundamental operating principle and the three design conditions required for the novel interleave filter are explained. As examples, three types of filter design, namely 1) a general/transposed design; 2) an asymmetric design; and 3) a symmetric design, are presented, and their interleave filter characteristics are discussed. The designed interleave filters with a free spectral range of 100 GHz was fabricated using silica-based planar lightwave circuit (PLC) technology. The asymmetric design achieved a wide 3-dB passband width of 55 GHz, whereas an ordinary lattice-form interleave filter could not realize a 3-dB passband width larger than 50 GHz because of the halfband property. A small polarization-dependent wavelength shift of 0.01 nm is demonstrated by inserting a single half waveplate in the middle of the circuit. The general/transposed and symmetric designs realized a practical interleave filter with a boxlike transmission spectrum and low chromatic dispersion. The two-stage interleave filter formed by cascading the general and transposed designs has the advantages of a low crosstalk of less than -46 dB and a wide 20-dB stopband width of 40 GHz, whereas the single-stage symmetric design has an extremely small chromatic dispersion of within /spl plusmn/5 ps/nm. In addition, the design concept to realize a 1/spl times/N transversal interleave filter is extended. |
| Sponsorship | IEEE Lasers and Electro-Optics Society Optical Society of America |
| Starting Page | 2602 |
| Ending Page | 2617 |
| Page Count | 16 |
| File Size | 863579 |
| File Format | |
| ISSN | 07338724 |
| Volume Number | 24 |
| Issue Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Optical filters Transversal filters Optical crosstalk Optical ring resonators Finite impulse response filter Optical signal processing Optical fiber filters Wavelength division multiplexing Digital filters Optical waveguides wavelength-division multiplexing (WDM) Frequency-division multiplexing optical delay lines optical filters optical planar waveguides optical waveguide filters |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics |
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