Title :
10 GHz Si bipolar amplifier and mixer ICs for coherent optical systems
Author :
Okamura, T. ; Kuraishi, Y. ; Tsuzuki, O. ; Senba, T. ; Kurioka, C.
Author_Institution :
NEC Corp., Kawasaki, Japan
Abstract :
The authors describe a 10-GHz bandwidth amplifier IC and mixer IC fabricated in silicon bipolar technology, intended for use in multi-Gb/s coherent optical-fiber communication systems, for example, the continuous-phase frequency shift keying (CPFSK) heterodyne receiver. These 10-GHz silicon bipolar ICs are achieved by repeated simulations with an accurate high-frequency model of interconnect lines, and by using 30-GHz f/sub t/ transistors. The functional blocks of the coherent optical heterodyne receiver are shown. The IF (intermediate frequency) amplifier is used for sufficient signal level for the demodulator input. The mixer consists of the differential detector. To achieve the multi-Gb/s rate requires an IF amp with 20-dB gain, 10-GHz bandwidth, and flat frequency response. 10-GHz bandwidth for both mixer inputs is required.<>
Keywords :
MMIC; bipolar integrated circuits; microwave amplifiers; mixers (circuits); optical communication equipment; 10 GHz; 20 dB; CPFSK; IF amp; Si; amplifier IC; bandwidth; coherent optical heterodyne receiver; coherent optical-fiber communication systems; continuous-phase frequency shift keying; frequency response; mixer IC; multi Gbit/s amplifier; Bandwidth; Bipolar integrated circuits; Optical amplifiers; Optical interconnections; Optical mixing; Optical receivers; Photonic integrated circuits; Semiconductor optical amplifiers; Silicon; Stimulated emission;
Conference_Titel :
Solid-State Circuits Conference, 1992. Digest of Technical Papers. 39th ISSCC, 1992 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0573-6
DOI :
10.1109/ISSCC.1992.200482
