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Low-cost wavelength measurement based on a macrobending single-mode fiber
Qian Wang1, Gerald Farrell, Thomas Freir
1Applied Optoelectronics Centre, School of Electronics and Communications Engineering, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland. Qian.wang@dit.ie
Optics Letters
|May 27, 2006
Summary
A novel, low-cost fiber optic method accurately measures wavelengths using a simple macrobending fiber filter. This technique offers a 10 pm resolution for precise optical sensing applications.
Area of Science:
- Optical Engineering
- Fiber Optics
- Metrology
Background:
- Accurate wavelength measurement is crucial for optical sensing and telecommunications.
- Existing methods can be costly or complex to implement.
Purpose of the Study:
- To develop a low-cost, all-fiber technique for precise wavelength measurement.
- To demonstrate a novel edge filter using macrobending standard single-mode fiber.
Main Methods:
- Designed and fabricated a macrobending standard single-mode fiber as an edge filter.
- Implemented a ratiometric measurement system utilizing the fiber filter.
- Optimized filter design and surface processing for performance.
Main Results:
- Achieved a wavelength measurement resolution of approximately 10 picometers (pm).
- Demonstrated effective operation within the 1,500 to 1,560 nm wavelength range.
- The system exhibited ease of assembly and calibration.
Conclusions:
- The proposed macrobending fiber filter provides a cost-effective solution for high-resolution wavelength measurement.
- This technique is suitable for applications requiring simple, accurate optical sensing.
- The all-fiber approach simplifies system integration and reduces operational complexity.
