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Often dubbed as the "silicon of photonics", lithium niobate (LiNbO3 or LN) is a significant ferroelectric crystal and possesses versatile properties including wide transparency window, relatively high refractive index, large electric-optical coefficient, strong second-order nonlinearity, as well as acousto-optic effect and piezoelectricity[1]. These excellent properties make it as a prevailing photonic material for the long-haul telecom modulator and wavelength-converter markets. However, these conventional lithium niobate photonic devices are usually low refractive index waveguides and thus have weak optical mode confinement, which greatly limits their applications[2]. Single-crystal lithium niobate thin film or lithium niobate on insulator (LNOI) is formed by lithium niobate thin film of several hundred nanometer thick (typically 300-900 nm) with different crystalline orientation bonded to a silica buffering layer on a wafer substrate (which can be bulk LN, silicon, quartz, etc.). It retains the excellent physical properties of LN bulk material and exhibits a high refractive index contrast, which solves the above problems successfully and facilitates the development of this material. Therefore, LNOI has attracted wide attention in recent years, and widely used in optical devices, acoustic wave devices, nonlinear optics and sensing fields.
In the past few years, Alfa Chemistry has been committed to the development and breakthrough of LNOI technology. With strong professional capabilities and rich experience in single crystal materials and semiconductor fields, we are now capable of manufacturing and scaling production of single crystal LNOI products, and successfully applying them in multiple sectors.
| Catalog | SC-TFW001 |
| Description | Our LNOI products maintain the physical properties of the bulk material with the lattice structure of single crystal. The top functional layer is lithium niobate single crystal film, the intermediate layer is silica buffering layer, and the substrate is bulk LN, silicon, quartz, etc. |
| Top Functional Layer Thickness | 300-1000 nm; 5-50 μm |
| Size | 3/4/6 inch |
Our products can be mainly used in the following fields:
High Speed Electro-optic Modulator
High-performance Acoustic Wave Devices
High Density Data Storage
Our products have excellent electro-optic effects and nonlinear optical effects, and can be widely used in the field of electro-optic modulators. The prepared lithium niobate thin film modulator has the advantages of small volume, good stability, large bandwidth, high transmission rate, low power consumption, stable performance, low manufacturing cost, and can achieve optical integration.
Our products are also ideal materials for high-performance acoustic wave devices such as surface acoustic wave (SAW) filters and bulk acoustic wave (BAW) resonators. They enable miniaturization, improved performance, high reliability, good thermal conductivity of these devices, making them more suitable for modern electronic systems such as various communication systems, sensors, and signal processing applications.
Our products can be used in the field of high-density information storage. They can be the basis for creation of perspective types of random access memory (RAM) , such as FRAM (FeRAM) and RRAM (ReRAM).
Our team of experts is well-equipped to handle complex and specialized requests, ensuring high performance and reliability of the final product. In addition to standard products, we offer custom fabrication services to meet the unique needs of our clients. Whether you need special thicknesses, specific substrate materials, or tailored film properties, we work closely with our customers to develop customized solutions. Please feel free to contact us so that we may discuss your lithium niobate thin film (LNOI) requirements.
References
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