Non-sinusoidal optical fiber filters and method of making the same
1. Field of the Invention An optical fiber filter () with a non-sinusoidal wavelength response is produced by forming an adiabatic taper in a single mode fiber () and forming non-adiabatic tapers () on slopes at each end of the elongated central region of this adiabatic tape and in the middle of the...
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| Format | Patent |
| Language | English |
| Published |
14.12.2004
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| Online Access | Get full text |
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| Summary: | 1. Field of the Invention
An optical fiber filter () with a non-sinusoidal wavelength response is produced by forming an adiabatic taper in a single mode fiber () and forming non-adiabatic tapers () on slopes at each end of the elongated central region of this adiabatic tape and in the middle of the central region (). The non-adiabatic taper () in the middle of the central region () produces a phase shift in the wavelength response leading to non-sinusoidal filtering characteristics. The filter may be combined with a Mach-Zehnder interferometer to produce a Mach-Zehnder device with a non-sinusoidal wavelength response. |
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