Introduction

Welcome to the 2011 edition of the SPIE 8309 conference proceedings on Optical Transmission Systems, Subsystems, and Technologies. As the largest subconference within the 2011 Asia Communications and Photonics Conference (ACP ´11), our conference has been successfully held in Shanghai, China. This conference offered 30 invited presentations by world experts in this technical field, 51 oral presentations, and 30 poster presentations. The conference received 124 regular submissions, of which only 41% were accepted for oral presentation and 24% for poster presentation, indicating high paper selectivity. Conference 8309 consists of 15 regular technical sessions, covering the following technical areas: • Optical transmission systems • Optical components technologies • Digital signal processing (2 sessions) • Modulation, detection, and transmission (3 sessions) • Spatial-division multiplexing • Optical signal processing • Radio-over-fiber (2 sessions) • Access/PON technologies • Networking technologies