Article
Chemistry, Multidisciplinary
Xin Li, Shuyu Ni, Yan Jiang, Jie Li, Wei Wang, Jialei Yuan, Dabing Li, Xiaojuan Sun, Yongjin Wang
Summary: The research team proposed and realized a monolithic photonic chip with multifunctional light emission/detection and electro-optic modulation capabilities on an InP-based wafer, which can be potentially used for transmitting optical signals in the near-infrared range.
Article
Physics, Applied
Georgios Sinatkas, Thomas Christopoulos, Odysseas Tsilipakos, Emmanouil E. Kriezis
Summary: Electro-optic modulators play a crucial role in determining the transmission rate of photonic communication systems. Recent advancements in materials and fabrication techniques have brought new elements to research on optical modulation. This Perspective reviews the current state of integrated electro-optic modulators, covering a wide range of materials and platforms, and highlights important considerations for researchers in physics and engineering.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Srinivasa Reddy Tamalampudi, Ghada Hamed Dushaq, Juan E. Villegas, Bruna Paredes, Mahmoud S. Rasras
Summary: In this study, the tuning of the optical index of refraction based on hybrid integration of multi-layered anisotropic GaGeTe on a silicon micro-ring resonator (Si-MRR) is demonstrated. The device exhibits a linear resonance shift under TE polarization and both amplitude and phase modulation under TM polarization. The device also shows good dynamic RF response and has great potential for integrated photonic applications on the silicon photonics platform.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Hanke Feng, Ke Zhang, Wenzhao Sun, Yangming Ren, Yiwen Zhang, Wenfu Zhang, Cheng Wang
Summary: This research demonstrates a highly linear lithium niobate (LN) modulator with an ultra-high spurious-free dynamic range (SFDR) using a ring-assisted Mach-Zehnder interferometer configuration. The modulation does not require active feedback controls to suppress third-order intermodulation distortions (IMD3), resulting in a significant improvement over previous results in the thin-film LN platform.
PHOTONICS RESEARCH
(2022)
Article
Optics
Xibin Wang, Meiling Zhang, Minghui Jiang, Tianhang Lian, Fei Wang, Daming Zhang
Summary: This study demonstrated an organic polymer-based monolithic integrated waveguide device with dual functions of electro-optic modulation and optical amplification. The waveguide structure was successfully designed and fabricated, achieving a high optical gain and a fast response time.
Article
Nanoscience & Nanotechnology
Christopher Damgaard-Carstensen, Sergey I. Bozhevolnyi
Summary: In this work, electro-optically controlled optical metasurfaces for reflection modulation are demonstrated. By identifying a suitable low-loss waveguide mode and exploiting its resonant excitation, the modulation of reflected light power with superior characteristics is achieved compared to previous research. The electro-optic Pockels effect in a 300 nm-thick lithium niobate (LN) film is utilized to realize fast and efficient light modulation.
Article
Chemistry, Multidisciplinary
Joaquin Hernandez-Betanzos, Mariano Aceves-Mijares, Alfredo Abelardo Gonzalez-Fernandez
Summary: This study presents a novel integrable silicon photodetector that is part of a monolithic electrophotonic basic structure. The photodetector has current gain and high sensitivity, allowing it to detect low power light produced by silicon light sources. It is fully compatible with standard microelectronics technology.
APPLIED SCIENCES-BASEL
(2022)
Article
Nanoscience & Nanotechnology
Brian S. Lee, Bumho Kim, Alexandre P. Freitas, Aseema Mohanty, Yibo Zhu, Gaurang R. Bhatt, James Hone, Michal Lipson
Summary: Graphene-based electro-optic modulators demonstrate higher bandwidth and performance at low temperatures, offering a solution to the reduced bandwidth issue of existing integrated modulators in cryogenic applications.
Article
Optics
Pan Wanle, Chen Heming, Hu Yuchen
Summary: In the Internet era, the demand for transmission speed and capacity has increased significantly. Graphene-based electro-optic modulators and mode division multiplexing technology have the potential to improve the performance of optical communication systems.
ACTA PHOTONICA SINICA
(2023)
Article
Optics
Yuchen Hu, Heming Chen
Summary: We proposed an integrated device for electro-optic modulation and dense wavelength division multiplexing based on photonic crystals. The designed structure was modeled and analyzed using time-domain coupled mode theory and 3D finite-difference time-domain method. Numerical results showed that the proposed device achieved on-off modulation and DWDM functions with a channel spacing of 0.8 nm at operating wavelengths of 1555 nm and 1554.2 nm. The device exhibited low insertion loss, small channel crosstalk, and fast modulation speed, making it suitable for highly-integrated large-capacity optical communication systems and data centers.
Article
Optics
Fang Zou, Lei Zou, Ye Tian, Yiming Zhang, Erwin Bente, Weigang Hou, Yu Liu, Siming Chen, Victoria Cao, Lei Guo, Songsui Li, Lianshan Yan, Wei Pan, Dusan Milosevic, Zizheng Cao, Antonius M. J. Koonen, Huiyun Liu, Xihua Zou
Summary: Electro-optic modulation, an important topic in the field of communications and sensing, faces limitations in increasing modulation efficiency due to the monotonic mapping relationship between electrical and optical signals. To overcome this limitation, researchers reveal a new mechanism called phase-transition EO modulation, achieved through the reciprocal transition between distinct phase planes. An integrated mode-locked laser prototype is implemented, achieving an ultrahigh modulation energy efficiency and a high contrast ratio, with applications in radio-over-fiber communication and acoustic sensing. This advancement in EO modulation technology opens up new possibilities for green communication and ubiquitous sensing.
LASER & PHOTONICS REVIEWS
(2023)
Article
Multidisciplinary Sciences
Keith Powell, Liwei Li, Amirhassan Shams-Ansari, Jianfu Wang, Debin Meng, Neil Sinclair, Jiangdong Deng, Marko Loncar, Xiaoke Yi
Summary: The authors demonstrate an electro-optic modulator based on Silicon Carbide, which shows promising potential for quantum and optical communications. The modulator is fabricated using a CMOS foundry compatible process, and features small form-factor, high bandwidth, and stable operation.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Mengke Wang, Yixin Chen, Shengpeng Zhang, Lianghai Dong, Hao Yao, Huajun Xu, Kaixin Chen, Jieyun Wu
Summary: Emerging technologies, such as artificial intelligence (AI) and big data, are driving the exponential growth of data traffic in fiber-optic communication networks. Electro-optic (EO) modulators, utilizing the electro-optic effect, have emerged as promising candidates for high-speed and high-efficiency optical transceivers. Pockels electro-optic materials, including organic poled polymers and inorganic thin-film lithium niobate, have unique material properties that make them suitable for achieving high-speed and high-efficiency EO modulation.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Review
Optics
Mian Zhang, Cheng Wang, Prashanta Kharel, Di Zhu, Marko Loncar
Summary: Thin-film lithium niobate has emerged as a strong contender for next-generation electro-optic modulators due to its high efficiency, performance stability, and scalability.
Article
Nanoscience & Nanotechnology
Yuan Gao, Shadi Meshkat, Andrew Johnston, Chao Zheng, Grant Walters, Qixin Feng, Xiaoping Wang, Meng-Jia Sun, Amin Morteza Najarian, Dingjiang Xue, Ya-Kun Wang, Makhsud Saidaminov, Oleksandr Voznyy, Sjoerd Hoogland, Edward H. Sargent
Summary: The study introduces a method for linear electro-optic modulation using metal-free perovskites, with enhanced electro-optic response by introducing cation deficiencies. These new materials exhibit excellent performance at a modulation frequency of 80 kHz, with a higher electro-optic coefficient compared to traditional materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
