Abstract
40-Gbit/s based wavelength division multiplexing (WDM) system is becoming a key issue for long haul high-capacity optical communication, and the optical clock pulse source is the one of the devices most important in this technology. Mode-locked semiconductor lasers (MLLDs) are excellent sources because they can directly generate pulses with a high signal-to-noise ratio (SNR). From the viewpoint of practical optical communication use, the MLLD should be a monolithically integrated one because of its cost performance in fabricating a number of devices. Many efforts have been made toward developing a monolithic MLLD, in which a distributed Bragg reflector (DBR), a saturable absorber (SA) section, a gain section, and a passive waveguide section are integrated.1,2 In contrast, external-cavity MLLDs (EC-MLLDs), offering wavelength tun-ability and mode-locking frequency flexibility, as well as the optical pulse width controllability, are ideal devices for evaluating system performance.
© 2002 Optical Society of America
PDF ArticleMore Like This
T. Nishimura, Y. Nomura, K. Akiyama, N. Tomita, and T. Isu
ThGG65 Optical Fiber Communication Conference (OFC) 2002
H. Yokoyama, Y. Hashimoto, H. Kurita, I. Ogura, T. Shimizu, R. Kuribayashi, M. Shirane, and H. Yamada
WJ1_1 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2001
Hidehiko TAKARA, Satoki KAWANISHI, and Masatoshi SARUWATARI
TUD1 Optical Amplifiers and Their Applications (OAA) 1993