| Zhu Zi-hang,Zhao Shang-hong,Yao Zhou-shi,Tan Qing-gui,Li Yong-jun,Dong Yi,Zhao Wei-hu.Influence of phase shift drift and splitting ratio on 80 GHz optical mm-wave generation[J].Optoelectronics Letters,2012,8(4):301-305 |
| Influence of phase shift drift and splitting ratio on 80 GHz optical mm-wave generation |
| Author Name | Affiliation | | Zhu Zi-hang | Telecommunication Engineering Institute, Air Force Engineering University, Xi’an 710077, China | | Zhao Shang-hong | Telecommunication Engineering Institute, Air Force Engineering University, Xi’an 710077, China | | Yao Zhou-shi | Key Laboratory of National Defence Science and Technology on Space Microwave Technology, Xi’an 710000, China | | Tan Qing-gui | Key Laboratory of National Defence Science and Technology on Space Microwave Technology, Xi’an 710000, China | | Li Yong-jun | Telecommunication Engineering Institute, Air Force Engineering University, Xi’an 710077, China | | Dong Yi | Telecommunication Engineering Institute, Air Force Engineering University, Xi’an 710077, China | | Zhao Wei-hu | Telecommunication Engineering Institute, Air Force Engineering University, Xi’an 710077, China |
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| Abstract: |
| For the scheme of 80 GHz optical millimeter-wave (mm-wave) generation using two cascaded Mach-Zehnder modulators (MZMs), an
exact analytical solution for the optical mm-wave affected by phase shift drift and splitting ratio is derived with the method
of expanding Bessel series. The results show that for the carrier and the fourth-order sideband, the influence caused by phase
shift drift is dominant, while the first-order, the second-order and the third-order sidebands are influenced by both phase
shift drift and splitting ratio. It follows that the undesired sideband suppression ratio is at least 35.9 dB when the splitting
ratio deviation is 0.001, and the phase shift drift is 1°. The performance of the system is perfect if the accuracy is achieved. |
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| This work has been supported by the National High Technology Research and Development Program of China (No.2007AA01Z294). |
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