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Design of Polarization-Independent Coarse Wavelength Splitters Based on Ridge-Waveguide Directional Couplers
![Design and analysis of optical coupler with a stable splitting ratio based on cascaded multistage directional couplers Design and analysis of optical coupler with a stable splitting ratio based on cascaded multistage directional couplers](https://www.spiedigitallibrary.org/ContentImages/Journals/OPEGAR/51/9/094603/WebImages/OE_51_9_094603_f005.png)
Design and analysis of optical coupler with a stable splitting ratio based on cascaded multistage directional couplers
![Figure 3 from A monolithic low-cost 3-dB directional coupler based on silicon image guide (SIG) technology at millimeter-wave band | Semantic Scholar Figure 3 from A monolithic low-cost 3-dB directional coupler based on silicon image guide (SIG) technology at millimeter-wave band | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/f4dafb288722ad89b8c6dc39587bc18694ba9920/2-Figure3-1.png)
Figure 3 from A monolithic low-cost 3-dB directional coupler based on silicon image guide (SIG) technology at millimeter-wave band | Semantic Scholar
![a) Cross section of a directional coupler with shallower gap region... | Download Scientific Diagram a) Cross section of a directional coupler with shallower gap region... | Download Scientific Diagram](https://www.researchgate.net/profile/Chee-Wei_Lee/publication/26254699/figure/fig1/AS:309996584751104@1450920353028/a-Cross-section-of-a-directional-coupler-with-shallower-gap-region-and-deeper-outer.png)
a) Cross section of a directional coupler with shallower gap region... | Download Scientific Diagram
![Basic structure of the directional coupler with zero gap and large gap... | Download Scientific Diagram Basic structure of the directional coupler with zero gap and large gap... | Download Scientific Diagram](https://www.researchgate.net/publication/320179646/figure/fig1/AS:631642368532512@1527606684404/Basic-structure-of-the-directional-coupler-with-zero-gap-and-large-gap-acting-as.png)
Basic structure of the directional coupler with zero gap and large gap... | Download Scientific Diagram
![a) Simulated directional coupler structure; the absorbing strip has a... | Download Scientific Diagram a) Simulated directional coupler structure; the absorbing strip has a... | Download Scientific Diagram](https://www.researchgate.net/profile/Andrea_Melloni/publication/226535399/figure/fig2/AS:339788101111808@1458023204014/a-Simulated-directional-coupler-structure-the-absorbing-strip-has-a-complex-refractive.png)