The Application of Semiconductor Laser on All-Optical Regeneration

• Main Authors: Hung-Chang Chien, 錢鴻章
• Other Authors: Sien Chi
• Format: Others
• Language: en_US
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/80928752013590996546

博士 === 國立交通大學 === 光電工程系所 === 94 === In this dissertation, we investigate the all-optical regeneration techniques. A semiconductor laser, a commonly available low-cost light source, is recently found to be an ideal optical decision element, which can provide all-optical 2R regenerating function when injection-locked by a degraded signal. Both theoretical analysis and experimental demonstration are studied. Based on the traditional two-mode injection locking (TMIL) technique, two types of semiconductor-laser-based 2R schemes are presented. The first scheme has a simplified structure which employs a compact self-seed Fabry-Pérot laser diode (SSFP-LD) to execute all-optical 2R regeneration without the help from the traditionally required external probe lasers. Additionally, an integrated module using this SSFP-LD incorporated in a bidirectional optical amplifier is also proposed. Another scheme is an amplifier-free edition of the first one. By skillfully using different operation conditions from those of the first scheme, even the outside amplifiers are not required for 1.3/1.5 μm all-optical 2R regeneration. The proposed schemes are proved to be cost-effective solutions for the system impairments, and are promising for future deployment of optical networks.