Title :
Bidirectional optical transceiver integrated with an envelope detector for automatically controlling the direction of transmission
Author :
Ngo, Trong-Hieu ; Nguyen, Nga T H ; Sangirov, Jamshid ; Im, Dong-Min ; Cho, Mu Hee ; Lee, Tae-Woo ; Park, Hyo-Hoon
Author_Institution :
Photonic Comput. Syst. Lab., Inf. & Commun. Univ., Daejeon
Abstract :
A bidirectional optical transceiver integrated with a novel transmission envelope detector for controlling the transmitting direction automatically is proposed. The transmission envelope detector detects the present of received signals to generate the directional controlling signals. Implemented in a 0.18 mum CMOS technology, the bidirectional optical transceiver occupies an area of 1.08 mm2 and dissipates 42 mW and 49 mW in Tx and Rx modes, respectively. It achieves a 3-dB bandwidth of 4.4 GHz and 4 GHz in transmitter (Tx) and receiver (Rx) modes, while the disabled outputs for the Tx or Rx modes are isolated with 41 dB and 68 dB, respectively, from the enabled outputs.
Keywords :
CMOS integrated circuits; sensors; transceivers; CMOS technology; bidirectional optical transceiver; directional controlling signals; power 42 mW; power 49 mW; receiver modes; size 0.18 mum; transmission envelope detector; transmitter modes; Automatic control; Automatic generation control; CMOS technology; Envelope detectors; Integrated optics; Optical control; Optical receivers; Optical transmitters; Signal generators; Transceivers;
Conference_Titel :
Electronic Components and Technology Conference, 2009. ECTC 2009. 59th
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-4475-5
Electronic_ISBN :
0569-5503
DOI :
10.1109/ECTC.2009.5074314
