Function of Glan polarizer
Release Time：
2025-05-15
outline： A Glan-type polarizer is an optical component made using birefringent crystals (such as calcite). Its core function is to generate, select, or analyze polarized light.
A Glan polarizer is an optical component made using birefringent crystals (such as calcite). Its core function is to generate, select, or analyze polarized light. Specific functions include:
Separation and filtering of polarized light
Incident unpolarized light or mixed polarized light is separated into two beams of linearly polarized light (ordinary light o-light and extraordinary light e-light) with mutually perpendicular vibration directions. Through structural design (such as air gaps or adhesives), only one beam (e.g., e-light) is allowed to pass, while the other is reflected or absorbed.
High Extinction Ratio polarized light output
Outputs linearly polarized light with extremely high polarization, with an Extinction Ratio reaching 10⁴:1 or higher. Suitable for precision optical systems requiring pure polarized light (such as laser modulation, fiber optic communication, optical measurement, etc.).
Analysis and control of polarization state
As an analyzer, it detects the polarization state of incident light (such as determining whether it is linearly polarized light and its vibration direction), or is used to control the polarization features of light (such as preventing reflected light from interfering with the light source in an optical isolator).
Core features: Based on the principle of crystal birefringence, compact structure, suitable for visible light to near-infrared bands, widely used in scientific research and industrial scenarios requiring high-purity polarized light (such as lasers, spectrometers, optical communication devices, etc.).
Previous
outline： The 20th "China Optics Valley" International Optoelectronics Expo (hereinafter referred to as the Optics Expo) opened on May 15, 2025, at the China Optics Valley Science and Technology Convention and Exhibition Center. The expo was hosted by the People's Government of Hubei Province and co-hosted by the People's Government of Wuhan City, the Hubei Provincial Department of Economy and Information Technology, and the Management Committee of Wuhan East Lake High-tech Development Zone. Themed "Light Connects All Things, Intelligence Leads the Future," this year's expo was included for the first time in the United Nations Educational, Scientific and Cultural Organization's (UNESCO) global series of events for the International Day of Light, making it a major focus in the global optoelectronics field.
2025-05-18
outline： From March 11th to 13th, 2025, the 20th anniversary grand celebration of the Munich Shanghai Optical Fair was successfully concluded at the Shanghai New International Expo Center. This year's exhibition was unprecedented in scale, presenting the industry with a comprehensive and high-level technological feast. At the same time, this exhibition fully demonstrated, from the breadth of the exhibition scope, the richness of optoelectronic products, the novelty of trend transmission, and the depth of exchange and cooperation, the rapid development of the optoelectronic industry under the global wave through technological innovation, international cooperation, and industrial chain integration, winning high recognition and praise from industry enterprises and partners.
2025-03-14
outline： LASER World of Photonics, Munich is the world's only professional optoelectronics exhibition covering all categories of the optoelectronics industry and showcasing the most cutting-edge technologies. It is hosted by Messe München GmbH, a renowned German exhibition group. Thousands of optoelectronics companies from around the world will gather at the New Munich Trade Fair Centre. Novel, technologically advanced new products, innovative solutions, and cutting-edge applications will be showcased. The large number of investors and traders attending the exhibition will pave the way for advanced science and technology to be transformed into real productivity.
2024-09-14
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