Title:
RECEIVER AND METHOD FOR RECEIVING OPTICAL SIGNALS
Document Type and Number:
WIPO Patent Application WO/2014/072183
Kind Code:
A3
Abstract:
The invention relates to a receiver (1) for receiving optical signals, having at least one waveguide (2), to which an optical input signal can be supplied, at least one first photodiode mesa (3) having at least one first contact layer (31), which is arranged on a part-face of the waveguide (2), and at least one absorption layer (33), which is arranged at least on a part-face of the first contact layer (31), and at least one second contact layer (32), which is arranged on the absorption layer (33), wherein the receiver (1) contains at least one second photodiode mesa (4), which contains at least one first contact layer (41), an absorption layer (43) and a second contact layer (42), wherein the first contact layer (41) is arranged on a part-face of the waveguide (2) and the at least one absorption layer (43) is arranged on at least one part-face of the first contact layer (41) and the second contact layer (42) is arranged on the absorption layer (43), wherein the absorption layer (33) of the first photodiode mesa (3) contains at least one quantum well structure and is designed to absorb light having a first polarisation direction more than light having a second polarisation direction, and the absorption layer (43) of the second photodiode mesa (4) is composed differently from the absorption layer (33) of the first photodiode mesa (3).
Inventors:
JANIAK KLEMENS (DE)
RUNGE PATRICK (DE)
ZHOU GAN (DE)
SCHELL MARTIN (DE)
RUNGE PATRICK (DE)
ZHOU GAN (DE)
SCHELL MARTIN (DE)
Application Number:
PCT/EP2013/072250
Publication Date:
November 27, 2014
Filing Date:
October 24, 2013
Export Citation:
Assignee:
FRAUNHOFER GES ZUR FÖRDERUNG DER ANGEW FORSCHUNG E V (DE)
International Classes:
H01L31/105; G02B6/126; G02B6/27; H01L27/144; H01L31/0232; H01L31/0352; H01L31/103
Foreign References:
| ES2100791A2 | 1997-06-16 | |||
| EP0558089A2 | 1993-09-01 | |||
| US5117469A | 1992-05-26 | |||
| US20040096175A1 | 2004-05-20 | |||
| US5125050A | 1992-06-23 |
Other References:
FERRERAS A ET AL: "Compressive strained multiquantum-well waveguide photodetectors for coherent receivers", IEEE PHOTONICS TECHNOLOGY LETTERS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 7, no. 5, May 1995 (1995-05-01), pages 546 - 548, XP011432840, ISSN: 1041-1135, DOI: 10.1109/68.384539
LARSSON A ET AL: "TUNABLE SUPERLATTICE P-I-N PHOTODETECTORS: CHARACTERISTICS, THEORY, AND APPLICATIONS", IEEE JOURNAL OF QUANTUM ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, vol. 24, no. 5, May 1988 (1988-05-01), pages 787 - 801, XP000002071, ISSN: 0018-9197, DOI: 10.1109/3.195
LARSSON A ET AL: "TUNABLE SUPERLATTICE P-I-N PHOTODETECTORS: CHARACTERISTICS, THEORY, AND APPLICATIONS", IEEE JOURNAL OF QUANTUM ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, vol. 24, no. 5, May 1988 (1988-05-01), pages 787 - 801, XP000002071, ISSN: 0018-9197, DOI: 10.1109/3.195
Attorney, Agent or Firm:
GOEDEN, Christian et al. (Patentanwälte PartnerschaftUhlandstr. 2, München, DE)
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