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Journal Article
Fabrication of 40 Gb/s Front-End Optical Receivers Using Spot-Size Converter Integrated Waveguide Photodiodes
- Authors
- Yong-Hwan Kwon, Joong-Seon Choe, Jeha Kim, Kisoo Kim, Kwang-Seong Choi, Byung-Seok Choi, Ho Gyeong Yun
- Issue Date
- 2005-10
- Citation
- ETRI Journal, v.27, no.5, pp.484-490
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- We fabricated 40 Gb/s front-end optical receivers using spot-size converter integrated waveguide photodiodes (SSC-WGPDs). The fabricated SSC-WGPD chips showed a high responsivity of approximately 0.8 A/W and a 3 dB bandwidth of approximately 40 GHz. A selective wetetching method was first adopted to realize the required width and depth of a tapered waveguide. Two types of electrical pre-amplifier chips were used in our study. One has higher gain and the other has a broader bandwidth. The 3 dB bandwidths of the higher gain and broader bandwidth modules were about 32 and 42 GHz, respectively. Clear 40 Gb/s non-return-to-zero (NRZ) eye diagrams showed good system applicability of these modules.
- KSP Keywords
- 3-dB bandwidth, 40 gb/s, Broader bandwidth, Eye Diagram, Front-End, Integrated waveguide, Optical receiver, Pre-amplifier, Spot size converter(SSC), Waveguide photodiodes(WGPD), high responsivity
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
