Sensing Refractive Indices of Fluids by Wavelength-Tunable Laser and Novel Multi-stage Directional Couplers
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Ruei-Chang Lu
Abstract
In this work, the authors propose a modified type of multi-stage directional couplers and combine it with a wavelength-tunable laser to measure the refractive index of an undetermined biochemical liquid/solution. Tuning the wavelength of the laser incident on the modified multi-stage directional couplers, the relationship between the wavelength corresponding to the maximal output optical power and the refractive index of the unknown fluid has been obtained.
References
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- Frontmatter
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- Comparative Performance of Modulation Formats using RAMAN-EDFA Hybrid Optical Amplifier in Fiber Optic Communication System
- Devices
- Binary to Octal and Octal to Binary Code Converter Using Mach–Zehnder Interferometer for High Speed Communication
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