Plateau type wavelength division multiplexer of pass band realized by three point focusing
A wavelength division multiplexing device and flat-top technology, applied in the field of optical communication wavelength division multiplexing, can solve the problems of limited relative bandwidth, device application limitations, difficult to control passband ripple, etc., and achieve compact device structure and dispersion characteristics. Good results
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0030] Such as figure 1 , figure 2 Shown: the present invention comprises input waveguide 1, free propagation area 2, diffraction grating 3 and output waveguide 4, input waveguide 1 and output waveguide 4 are located at one side of free propagation area 2, and diffraction grating 3 is located at the other side of free propagation area 2 On the side, the focus center of the grating is changed from the traditional one to three (such as image 3 shown), the focal point spacing is determined by the required bandwidth. The determination of the center position of each grating tooth is based on the required passband width to select a suitable "focus point". Generally, the three sub-gratings (corresponding to three focus points) are interlaced with each other, and the ratio of the number of teeth is determined by the distance between the focus points. The sum of the optical distances between different grating teeth with the same focus point and the input point and the output "focus...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com