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A high resolution optical vector network analyzer based on a wideband and wavelength-tunable optical single-sideband
Zhenzhou Tang1, Shilong Pan, Jianping Yao
1College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
Optics Express
|March 16, 2012
Summary
A novel optical vector network analyzer (OVNA) utilizes a tunable optical single-sideband modulator for high-resolution measurements. This advanced system achieves a 78 kHz resolution, enabling precise characterization of optical devices and phenomena.
Area of Science:
- Optoelectronics
- Photonics
- Optical Measurement Techniques
Background:
- Traditional network analyzers face limitations in optical domain resolution.
- Need for precise characterization of narrow-band optical components and phenomena.
Purpose of the Study:
- To propose and demonstrate a high-resolution optical vector network analyzer (OVNA).
- To achieve wideband and wavelength-tunable optical single-sideband (OSSB) modulation for enhanced measurement capabilities.
Main Methods:
- Implementation of an OVNA based on a wideband, wavelength-tunable OSSB modulator.
- Utilizing a phase modulator and a specialized tunable optical filter for OSSB generation.
- Experimental evaluation of the OSSB modulator's integration into the OVNA.
Main Results:
- Successful demonstration of wideband and wavelength-tunable OSSB modulation.
- Accurate measurement of magnitude and phase response for an ultra-narrow-band fiber Bragg grating (FBG).
- Characterization of stimulated Brillouin scattering (SBS) in single-mode fiber with high precision.
Conclusions:
- The proposed OVNA with OSSB modulation offers a significant advancement in optical measurement resolution.
- Achieved a measurement resolution as high as 78 kHz.
- The system is suitable for detailed analysis of narrow-band optical devices and nonlinear effects.
