26
2024
-
12
Camoptics appeared at the 2024 China University Science and Technology Achievements Fair, and high-performance LCOS chips broke the international monopoly and helped the optical communication and laser processing industry upgrade.
Author:
The high-performance LCOS liquid crystal on silicon chip was independently developed by the doctoral team of Cambridge University in the United Kingdom, and was introduced to China by Jiangsu Industrial Technology Research Institute through the mode of dial-investment combination, and successfully mass produced in Suzhou Industrial Park in 2023. The LCOS spatial light modulation chip produced by Camoptics has high diffraction efficiency, expectional damage threshold, superior light utilization and other excellent performance. The key performance indicators are better than international peers, and the core optical chip localization for wavelength selection switches in the field of optical communication is realized, escorting national information security and technology autonomy and controllability. In the field of laser processing, we provide laser beam splitting and shaping, improve light utilization and production efficiency, promote industrial upgrading, and improve the core competitiveness in the international market.
PDF Article
Recommended News
Fundamentals of phase-only liquid crystal on silicon (LCOS) devices
This paper describes the fundamentals of phase-only liquid crystal on silicon (LCOS) technology, which have not been previously discussed in detail. This technology is widely utilized in high efficiency applications for real-time holography and diffractive optics. The paper begins with a brief introduction on the developmental trajectory of phase-only LCOS technology, followed by the correct selection of liquid crystal (LC) materials and corresponding electro-optic effects in such devices. Attention is focused on the essential requirements of the physical aspects of the LC layer as well as the indispensable parameters for the response time of the device.Furthermore, the basic functionalities embedded in the complementary metal oxide semiconductor(CMOS) silicon backplane for phase-only LCOS devices are illustrated, including two typical addressing schemes. Finally, the application of phase-only LCOS devices in real-time holography will be introduced in association with the use of cutting-edge computer-generated holograms. Light: Science & Applications (2014) 3, e213; doi:10.1038/lsa.2014.94; published online 24 October 2014 Keywords: electro-optic effect; liquid crystal material; liquid crystal on silicon device; real-time holography
2024-04-25
Abstract: Sub-millisecond response time with a refresh rate higher than 2000 frames per second (fps) and no degradation of the contrast ratio or diffraction efficiency is demonstrated in working liquid crystal on silicon (LCOS) spatial light modulators (SLMs) with 8-bit grey levels of amplitude and phase modulations. This makes possible to achieve an information bandwidth of about 190 Gb s 1 with a 4k LCOS operating at 10-bit phase modulation levels. The normalised contrast stays at almost the unit level for a frame rate up to 1700 fps and at higher than 0.9 for 2500 fps. The diffraction efficiency stays above -1.0 dB for a frame rate up to 2400 fps. Such a fast response allows us to eliminate image blurring in replaying a fast movie. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
2024-04-25
Contact Us
1st floor, Building 15B, U Valley, Liandong, No. 200, Xingpu Road, Suzhou Industrial Park