{"date_updated":"2023-01-10T12:50:06Z","status":"public","author":[{"first_name":"Sergiy","full_name":"Gudyriev, Sergiy","last_name":"Gudyriev"},{"last_name":"Scheytt","full_name":"Scheytt, Christoph","id":"37144","first_name":"Christoph","orcid":"https://orcid.org/0000-0002-5950-6618"}],"year":"2015","language":[{"iso":"eng"}],"_id":"24290","page":"18","type":"conference","title":"Silicon photonics 90° optical hybrid design for coherent receivers","date_created":"2021-09-14T07:06:32Z","related_material":{"link":[{"url":"https://www.kh2015.de/KH2015_book_of_abstracts.pdf","relation":"confirmation"}]},"publication":"Kleinheubacher Tagung 2015","department":[{"_id":"58"},{"_id":"230"}],"user_id":"15931","place":"Miltenberg; Germany","citation":{"apa":"Gudyriev, S., &#38; Scheytt, C. (2015). Silicon photonics 90° optical hybrid design for coherent receivers. <i>Kleinheubacher Tagung 2015</i>, 18.","ieee":"S. Gudyriev and C. Scheytt, “Silicon photonics 90° optical hybrid design for coherent receivers,” in <i>Kleinheubacher Tagung 2015</i>, 2015, p. 18.","mla":"Gudyriev, Sergiy, and Christoph Scheytt. “Silicon Photonics 90° Optical Hybrid Design for Coherent Receivers.” <i>Kleinheubacher Tagung 2015</i>, 2015, p. 18.","ama":"Gudyriev S, Scheytt C. Silicon photonics 90° optical hybrid design for coherent receivers. In: <i>Kleinheubacher Tagung 2015</i>. ; 2015:18.","chicago":"Gudyriev, Sergiy, and Christoph Scheytt. “Silicon Photonics 90° Optical Hybrid Design for Coherent Receivers.” In <i>Kleinheubacher Tagung 2015</i>, 18. Miltenberg; Germany, 2015.","bibtex":"@inproceedings{Gudyriev_Scheytt_2015, place={Miltenberg; Germany}, title={Silicon photonics 90° optical hybrid design for coherent receivers}, booktitle={Kleinheubacher Tagung 2015}, author={Gudyriev, Sergiy and Scheytt, Christoph}, year={2015}, pages={18} }","short":"S. Gudyriev, C. Scheytt, in: Kleinheubacher Tagung 2015, Miltenberg; Germany, 2015, p. 18."},"abstract":[{"lang":"eng","text":"The recent rapid development of silicon photonics technology has spurred the process of on-chip \r\nintegration of all kinds of opto-electronic components. One of the most common components of such type \r\nis the opto-electrical receiver. The monolithic implementation of the receiver could potentially have lower \r\npower consumption, higher sensitivity and bandwidth due to very short diode to amplifier connection \r\nlength, which has very low parasitic capacitance and series resistance. The SiGe photodiode itself is also \r\nvery compact, thus lowering the junction capacitance and improving its bandwidth. Among the different optical communication systems, coherent transmission lately received a lot of \r\nattention due to the rising requirements of the optical link capacity, and it was shown that this particular \r\napproach could benefit greatly from the monolithic integration, since the major component required for the \r\ndemodulation on the receiver side – 90° optical hybrid – could be implemented fully passive and directly \r\non the same chip as the receiver itself, together with digital post-processing circuitry. Despite the initial \r\ncomplexity of the modulation scheme, advanced silicon photonics components like this optical hybrid \r\ncould make coherent transmission attractive even for short-range optical links. I would like to present the actual designs, implementation and measurement results of 90° fully passive \r\noptical hybrids, implemented in the IHP SG25PIC (passive photonics IC) technology. One of the designs \r\nis based on 4x4 multimode interferometer (MMI). The other one is based on two separate 2x2 MMIs with \r\nadditional delay element. The final designs didn’t require any additional tuning after fabrication and have \r\nshown sufficient precision and performance for a coherent system design. The results of this work were \r\nlater used for the design of monolithic coherent receiver."}]}