Optical films are used in a wide range of applications. The following are applications of optical films in the automotive industry as well as in optical communications.
Traditional optical industry optical film products are generally used in car lights (high contrast film HR), car markers (NCVM brightening film), head-up display (HUD, semi-transparent and semi-reflective film), rear-view mirrors, center display (AR(+AG)), electrochromic glass, car body (decorative film);With the development of technology, automobiles are slowly moving in the direction of green and entertainment, and thus the demand for technology is getting higher and higher.The display of the central control display area needs to be treated with anti-reflection and anti-reflection, the rearview mirror is also developing in the intelligent direction, and the head-up display will bring a more new experience for car safety and entertainment. With the advent of the era of autonomous driving, the number of vehicle sensors is increasing, and various cutoff filters and narrow band filters are needed in Lidar, which is a new direction for the future development of optical films in the automotive field.
Application of Optical Thin Film in Optical Communication Field
With the increasing communication capacity, optical communication systems are facing the challenge of urgent capacity expansion. Wavelength-division multiplexing (WDM) and dense wavelength-division multiplexing (DWDM) technologies are a way to rapidly expand capacity without adding much cost. With a transmission speed of 160 GB/s using 16-channel 0C-192WDM, there is a huge potential for capacity expansion. The following are several commonly used optical filters in optical communications:
Several commonly used optical filters in optical communications |
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Bandpass filter |
Cutoff filter |
Special filters |
50GHz |
980nm pump filter |
Gain Flattening Filters |
100GHz |
1480nm pump filter |
Dispersion Compensation Filters |
200GHz |
Long wave pass cut-off filter |
Beam splitter |
400GHz |
Short Wavelength Pass Cutoff Filters |
ASE Filter |
Blue/Red Beam Splitting Filter |
C/L-Band Beam Splitting Filters |
Antireflection film |
G/L Beam Split Filter |
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Polarizing beam splitter |
–This article is released by vacuum coating machine manufacturer Guangdong Zhenhua
Post time: Sep-12-2023