1/10  Gb/s single transistor-outline-CAN bidirectional optical subassembly for a passive optical network

Abstract

Abstract. We propose a novel, low-cost bidirectional optical subassembly (BOSA) that uses a single glass-sealed conventional transistor-outline (TO)-CAN package for passive optical network application. In this BOSA, optical transmitting and receiving functions are incorporated into a silicon optical bench and in a TO-CAN package, respectively. With these features, the optical and electrical crosstalk is efficiently suppressed. The single TO-CAN BOSA has an extinction ratio of 11.69 dB and output power of 2.93 dBm for 1.25 Gb∕s operation. The penalty of optical dispersion is 1.2 dB after 20-km single-mode fiber transmission. The receiver sensitivity is less than −30 dBm at a bit error rate of 10 −3 for 10.3 Gb∕s operation and the signal crosstalk penalty of a single TO-CAN BOSA is 0.8 dB.