Semiconductor Laser for Optical Communications

Quantum dot semiconductor optical amplifier/silicon external cavity laser for O-band high-speed optical communications

We report a hybrid integrated external cavity laser by butt coupling a quantum dot reflective semiconductor optical amplifier and a silicon-on-insulator chip. The device lasers at 1302 nm in the O-band, a wavelength regime critical to data communication systems. We measured 18 mW on-chip output power and over 50dB side-mode suppression ratio. We also demonstrated open eye diagrams at 10 and 40 ...

Development of Semiconductor Laser for Optical Communication

The performance, functionality and productivity of the semiconductor laser have been dramatically improved since its invention in 1962. Today it came to be indispensable for our life as optical components connecting home and the Internet as well as long-distance large-capacity trunk networks. It may be said that the information revolution pulled by the explosive spread of the Internet is origin...

AlGaAs Phased Array Laser for Optical Communications

Improvement of Optical Properties in Hexagonal Index-guiding Photonic Crystal Fiber for Optical Communications

Waveguides with low confinement loss, low chromatic dispersion, and low nonlinear effects are used in optical communication systems. Optical fibers can also be employed in such systems. Besides optical fibers, photonic crystal fibers are also highly suitable transmission media for optical communication systems. In this paper, we introduce two new designs of index-guiding photonic crystal fiber ...

Optical-Fiber Laser Amplifier for Ultrahigh-speed Communications

This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANLJ. The project objective was to develop a praseodymium-based 1.31-pm fiber amplifier that can be optically pumped with off-the-shelf semiconductor diode lasers. Development of optical amplifiers for the 1.3 1 -pm communications window is motivated by t...