Ultralow chirp and high-speed 1.55 μm multiquantum wellλ/4-shifted DFB lasers |
| |
| Authors: | Uomi K. Sasaki S. Tsuchiya T. Nakano H. Chinone N. |
| |
| Affiliation: | Hitachi Ltd., Tokyo; |
| |
| Abstract: | An ultra-low-chirp, high-speed, 1.55-μm, multi-quantum-well (MQW), λ/4-shifted, InGaAsP distributed-feedback (DFB) laser is demonstrated. A record chirp width of 0.4-0.5 nm (20-dB down full width) is achieved at 10-Gb/s direct modulation. This low-chirp single-longitudinal-mode operation is attained by an increase in the quantum size effect in the MQW active layer |
| |
| Keywords: | |
|
|
