Wide-range tunable semiconductor lasers using multiple quantum wells of different widths

Bor-Lin Lee; Ching-Fuh Lin; Miin-Jang Chen

doi:10.1117/12.328723

4 December 1998 Wide-range tunable semiconductor lasers using multiple quantum wells of different widths

Bor-Lin Lee, Ching-Fuh Lin, Miin-Jang Chen

Proceedings Volume 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications; (1998) https://doi.org/10.1117/12.328723
Event: 1998 International Conference on Applications of Photonic Technology, 1998, Ottawa, Canada

Abstract

In this paper, we present wide range tunable semiconductor lasers using multiple quantum wells of different widths. Conventional semiconductor-laser gain medium using the quantum-well structure for the wavelength near 0.8 micrometers has only 50 meV bandwidth. Using quantum wells of different widths could significantly broaden the gain bandwidth, so broadband tuning of the laser could be easily achieved. Two types of samples designed for broad bandwidth operation have been used in this experiment. In addition, unlike the past tuning experiments that suffer from serious ASE noise, this experiment demonstrates very high ASE suppression ratio (> 40 dB) over the entire tuning range by using a triangular ring cavity.

Citation Download Citation

Bor-Lin Lee, Ching-Fuh Lin, and Miin-Jang Chen "Wide-range tunable semiconductor lasers using multiple quantum wells of different widths", Proc. SPIE 3491, 1998 International Conference on Applications of Photonic Technology III: Closing the Gap between Theory, Development, and Applications, (4 December 1998); https://doi.org/10.1117/12.328723

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