Open AccessUltra-compact coherent receiver with serial interface for pluggable transceiver
Author(s) -
Toshihiro Itoh,
Fumito Nakajima,
Takao Ohno,
S. Yamanaka,
Shunichi Soma,
Takashi Saida,
Hideyuki Nosaka,
Koichi Murata
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.022583
Subject(s) - transimpedance amplifier , transceiver , bit error rate , photodiode , dual polarization interferometry , optics , amplifier , electronic engineering , computer science , materials science , channel (broadcasting) , physics , optoelectronics , cmos , telecommunications , engineering , operational amplifier , antenna (radio)
An ultra-compact integrated coherent receiver with a volume of 1.3 cc using a quad-channel transimpedance amplifier (TIA)-IC chip with a serial peripheral interface (SPI) is demonstrated for the first time. The TIA with the SPI and photodiode (PD) bias circuits, a miniature dual polarization optical hybrid, an octal-PD and small optical coupling system enabled the realization of the compact receiver. Measured transmission performance with 32 Gbaud dual-polarization quadrature phase shift keying signal is equivalent to that of the conventional multi-source agreement-based integrated coherent receiver with dual channel TIA-ICs. By comparing the bit-error rate (BER) performance with that under continuous SPI access, we also confirmed that there is no BER degradation caused by SPI interface access. Such an ultra-compact receiver is promising for realizing a new generation of pluggable transceivers.