| Autor: |
Park TH, Kim SM, Park SH, Seo JK, Lee HG, Oh MC |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2018 Jun 25; Vol. 26 (13), pp. 16323-16332. |
| DOI: |
10.1364/OE.26.016323 |
| Abstrakt: |
A tunable channel selector operating over both the C and L bands of wavelength-division-multiplexing optical network is proposed based on a thermo-optic tunable Bragg grating device in a polymer waveguide. A tilted Bragg grating cascaded with an asymmetric Y-branch waveguide effectively implements a small Bragg-reflection wavelength filter that does not require an external circulator. To increase the operating wavelength span of the channel selector, two Bragg gratings with different periods are fabricated on a single substrate for covering C and L bands, respectively. A wide tuning range over 80 nm along with a narrow bandwidth is demonstrated. Moreover, the polarization dependence of the reflection spectrum is observed to be less than 0.1 nm. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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