Novel measurement of traveling-wave semiconductor optical amplifier with tensile-strained-barrier MQW structure

Qingyuan Miao; Dexiu Huang; Lirong Huang; Tao Wang; Xinliang Zhang

doi:10.1117/12.574436

31 January 2005 Novel measurement of traveling-wave semiconductor optical amplifier with tensile-strained-barrier MQW structure

Qingyuan Miao, Dexiu Huang, Lirong Huang, Tao Wang, Xinliang Zhang

Author Affiliations +

Proceedings Volume 5624, Semiconductor and Organic Optoelectronic Materials and Devices; (2005) https://doi.org/10.1117/12.574436
Event: Asia-Pacific Optical Communications, 2004, Beijing, China

Abstract

A novel technique is presented in obtaining the performance characteristics of traveling-wave semiconductor optical amplifier (TWA) with tensile-strained-barrier multiple-quantum-well structure. In-out fiber ends of TWA are used to construct an external cavity resonator to produce big ripple on amplified spontaneous emission (ASE) spectrum. By this means, Hakki-Paoli method is adopted to obtain gain and differential gain spectra over a wide spectral range. From measured longitudinal mode spacing and peak wavelength shift due to increased bias current, we further calculate the effective refractive index, carrier-induced refractive index change and linewidth enhancement factor. Some special features about ASE mode spectrum shift and refractive index change above lasing threshold are revealed and explained.

Citation Download Citation

Qingyuan Miao, Dexiu Huang, Lirong Huang, Tao Wang, and Xinliang Zhang "Novel measurement of traveling-wave semiconductor optical amplifier with tensile-strained-barrier MQW structure", Proc. SPIE 5624, Semiconductor and Organic Optoelectronic Materials and Devices, (31 January 2005); https://doi.org/10.1117/12.574436

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