Zixi Liu, Cheng Zeng, Jinsong Xia. Research Progress on High-Linearity Electro-Optical Modulators[J]. Chinese Journal of Lasers, 2022, 49(12): 1206001
- Chinese Journal of Lasers
- Vol. 49, Issue 12, 1206001 (2022)
Fig. 1. Structure of Mach-Zehnder interferometer (MZI)
![Relationship between input and output powers of each signal component in MWP link[13]](/richHtml/zgjg/2022/49/12/1206001/img_02.jpg)
Fig. 2. Relationship between input and output powers of each signal component in MWP link[13]
![Dual-tone test output RF spectrum of MWP link[13]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Dual-tone test output RF spectrum of MWP link[13]
Fig. 4. Electrical predistortion method[14]
Fig. 5. Structure of polarization linear modulator[18]
Fig. 6. Structure diagram of double polarizer MZM[19]
Fig. 7. Dual polarization parallel MZM modulator[21]. (a) Model schematic; (b) RF output power as a function of RF input power for dual-polarization modulator and traditional ODSB schemes
Fig. 8. Dual parallel MZI modulator based on polarization multiplexing[22]. (a) Model schematic; (b) SFDR performance of multi-octave linearized link based on PM-DPMZM
Fig. 9. Enhanced linearized analog photonic link[23]. (a) Schematic of enhanced linearity link and working points of sub-MZMs; (b) comparison of frequency spectra for two-tone test, where the left is traditional quadrature-biased link and the right is enhanced linearity link; (c) SFDR curves, where the left is traditional quadrature-biased link and the right is enhanced linearity link
Fig. 10. Schematics of double parallel and multistage parallel modulators. (a) Double parallel modulator[24]; (b) multistage parallel modulator[25]
Fig. 11. Schematic of proposed linearity analog photonic link based on DPMZM[29]
Fig. 12. Structure diagram and microscopy image of double-parallel silicon MZM[30]
Fig. 13. Schematic of single integrated multiplex MZI modulator[31]
Fig. 14. Dual parallel MZM modulator based on phase shift[32]
Fig. 15. Schematic of series linearized modulator[33]
Fig. 16. Schematic and microscopy image of silicon double series MZM[34]. (a) Schematic; (b) microscopy image
Fig. 17. Structure diagram of micro-ring resonator
Fig. 18. Structure diagram of RAMZM
Fig. 19. Schematic of a RAMZM with push-pull operation[36]
Fig. 20. Two different configurations of IMPACC[37]
Fig. 21. CMOS compatible silicon microring-assisted MZM[38]. (a) Schematic of fabricated ring-assisted MZI modulator；(b) cross-section of waveguide; (c) top-view of fabricated modulator
Fig. 22. Optimized double microring assisted modulator[39]. (a) Microscopic image; (b) measured SFDR curves at 1 GHz and 10 GHz
Fig. 23. Process flow of heterogeneous-integrated MZM on silicon[40]. (a) Si-WG etch; (b) materials bonding; (c) Ⅲ-Ⅴ etch and N-contact; (d) metallization
Fig. 24. Structure and technological process of heterogeneous RAMAM on silicon[41]
Fig. 25. Reconfigurable silicon RAMZM[12]. (a) Model schematic; (b) modulator chip packaged with a PCB
Fig. 26. Compact thin-film lithium niobate electro-optic modulator on silicon[47]. (a) 1550 nm TE field; (b) 10 GHz RF field
Fig. 27. Si/LiNbO3 hybrid ring modulator[48]. (a) Structure diagram; (b) cross-section of device; (c) top-view optical micrograph of fabricated device; (d) SEM image of electrodes
Fig. 28. Structure schematic of Si/LiNbO3 hybrid MZM[49]
|
Table 1. Frequency and corresponding amplitude of dual-tone signal
|
Table 2. Common methods for linearization of electrooptical modulator
|
Table 3. Performance parameters of different modulator structures
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20