Silicon-on-insulator-based microwave photonic filter with widely adjustable bandwidth

Lu Xu; Jie Hou; Haitao Tang; Yuan Yu; Yu Yu; Xuewen Shu; Xinliang Zhang

doi:10.1364/PRJ.7.000110

Journals >Photonics Research >Volume 7 >Issue 2 >Page 110 > Article

Photonics Research
Vol. 7, Issue 2, 110 (2019)

Silicon-on-insulator-based microwave photonic filter with widely adjustable bandwidth

Lu Xu¹, Jie Hou¹, Haitao Tang¹, Yuan Yu^{1、2、3、*}, Yu Yu^{1、2、4、*}, Xuewen Shu^1、2, and Xinliang Zhang^1、2

Author Affiliations

¹Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China

²School of Optical and Electrical Information, Huazhong University of Science and Technology, Wuhan 430074, China

³e-mail: yuan_yu@hust.edu.cn

⁴e-mail: yuyu@mail.hust.edu.cn

show less

DOI: 10.1364/PRJ.7.000110 Cite this Article Set citation alerts

Lu Xu, Jie Hou, Haitao Tang, Yuan Yu, Yu Yu, Xuewen Shu, Xinliang Zhang. Silicon-on-insulator-based microwave photonic filter with widely adjustable bandwidth[J]. Photonics Research, 2019, 7(2): 110 Copy Citation Text

EndNote(RIS)

BibTex

Plain Text

show less

Abstract

We demonstrate a silicon-based microwave photonic filter (MPF) with flattop passband and adjustable bandwidth. The proposed MPF is realized by using a 10th-order microring resonator (MRR) and a photodetector, both of which are integrated on a photonic chip. The full width at half-maximum (FWHM) bandwidth of the optical filter achieved at the drop port of the 10th-order MRR is 21.6 GHz. The ripple of the passband is less than 0.3 dB, while the rejection ratio is 32 dB. By adjusting the deviation of the optical carrier wavelength from the center wavelength of the optical bandpass filter, the bandwidth of the MPF can be greatly changed. In the experiment, the FWHM bandwidth of the proposed MPF is tuned from 5.3 to 19.5 GHz, and the rejection ratio is higher than 30 dB.

E (t) = E_{0} {J_{0} (m) \cos (ω_{0} t) + J_{1} (m) \cos [(ω_{0} + ω_{m}) t + \frac{π}{2}] + J_{- 1} (m) \cos [(ω_{0} - ω_{m}) t - \frac{π}{2}]},

(1)

View in Article

E (t) = E_{0} {\sqrt{α_{0}} J_{0} (m) \cos (ω_{0} t) + \sqrt{α_{1}} J_{1} (m) \cos [(ω_{0} + ω_{m}) t + \frac{π}{2}] + \sqrt{α_{- 1}} J_{- 1} (m) \cos [(ω_{0} - ω_{m}) t - \frac{π}{2}]},

(2)

View in Article

i = R \cdot {| E_{0} |}^{2} [\sqrt{α_{0} α_{1}} J_{0} J_{1} \cos (ω_{m} t + \frac{π}{2}) + \sqrt{α_{0} α_{- 1}} J_{0} J_{- 1} \cos (ω_{m} t + \frac{π}{2})],

(3)

View in Article

i = R \cdot {| E_{0} |}^{2} \sqrt{α_{0}} (\sqrt{α_{1}} - \sqrt{α_{- 1}}) J_{0} J_{1} \cos (ω_{m} t + \frac{π}{2}) .

(4)

View in Article

FSR = c / (n_{g} \cdot L),

(5)

View in Article

Lu Xu, Jie Hou, Haitao Tang, Yuan Yu, Yu Yu, Xuewen Shu, Xinliang Zhang. Silicon-on-insulator-based microwave photonic filter with widely adjustable bandwidth[J]. Photonics Research, 2019, 7(2): 110

Download Citation

EndNote(RIS)

BibTex

Plain Text

Set citation alerts for the article

Tools

Set citation alerts for the article

Save the article for my favorites

Paper Information