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Waveguide Butt-Joint Germanium Photodetector with Lateral PIN Structure for 1600nm Wavelengths Receiving

Hideki ONO, Takasi SIMOYAMA, Shigekazu OKUMURA, Masahiko IMAI, Hiroki YAEGASHI, Hironori SASAKI

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Summary :

We report good responsivity at the wavelength of 1600nm in a Ge photodetector which had lateral p-i-n structure and butt-joint coupling structure based on conventional normal complementary metal oxide semiconductor processes. We experimentally verified the responsivity of 0.82A/W and 0.71A/W on the best and the worst polarizations, respectively. The butt joint lateral p-i-n structure is found to be polarization independent as compared with vertical ones. Although cut-off frequency was 2.3-2.4GHz at reverse bias 3V, clearly open eye diagram at 10Gbps was obtained with reverse bias over 12V. These results are promising as optical photodetectors to receive long wavelengths downstream signal wavelengths required for next-generation optical access network systems.

Publication
IEICE TRANSACTIONS on Electronics Vol.E101-C No.6 pp.409-415
Publication Date
2018/06/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E101.C.409
Type of Manuscript
PAPER
Category
Optoelectronics

Authors

Hideki ONO
  Photonics Electronics Technology Research Association (PETRA)
Takasi SIMOYAMA
  Photonics Electronics Technology Research Association (PETRA)
Shigekazu OKUMURA
  Photonics Electronics Technology Research Association (PETRA)
Masahiko IMAI
  Photonics Electronics Technology Research Association (PETRA)
Hiroki YAEGASHI
  Photonics Electronics Technology Research Association (PETRA)
Hironori SASAKI
  Photonics Electronics Technology Research Association (PETRA)

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