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Proceedings Paper

Nonlinear optical effects in semiconductor optical amplifiers and their applications to all-optical switching
Author(s): Chih Chung Yang; Yean-Woei Kiang; Jiun-Haw Lee; Jyh-Yang Wang; Horng-Shyang Chen; Chih-Wei Hsu; Jiann-Chang Lai; Ding-An Wang; Chih-Chang Chen
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Paper Abstract

Gain saturation and the induced refractive index variation in semiconductor optical amplifiers (SOAs) have been widely used for many optoelectronics operations, including frequency conversion, phase conjugation, switching, modulation, and laser mode locking. In this paper, we report the experimental and numerical results of using gain saturation in SOAs for all-optical switching and novel laser mode locking configurations. For all-optical switching, we fabricated an all-SOA nonlinear optical loop mirror and implemented efficient power-dependent switching in both cw and pulse modes. Also, numerical modeling was also conducted to show consistent trends with experimental data. For novel laser mode-locking configurations, we demonstrated numerically efficient operation of mode-locked semiconductor laser with multi-mode interference SOA structures. With the nonlinear coupling process, it was found that efficient pulse compression could be achieved, implying that stable mode locking is feasible. Also, with a ring cavity colliding-pulse mode locking can be implemented.

Paper Details

Date Published: 19 October 2001
PDF: 7 pages
Proc. SPIE 4580, Optoelectronics, Materials, and Devices for Communications, (19 October 2001); doi: 10.1117/12.444951
Show Author Affiliations
Chih Chung Yang, National Taiwan Univ. (Taiwan)
Yean-Woei Kiang, National Taiwan Univ. (Taiwan)
Jiun-Haw Lee, National Taiwan Univ. (Taiwan)
Jyh-Yang Wang, National Taiwan Univ (Taiwan)
Horng-Shyang Chen, National Taiwan Univ. (Taiwan)
Chih-Wei Hsu, National Taiwan Univ. (Taiwan)
Jiann-Chang Lai, National Taiwan Univ. (Taiwan)
Ding-An Wang, National Taiwan Univ. (Taiwan)
Chih-Chang Chen, National Taiwan Univ. (Taiwan)


Published in SPIE Proceedings Vol. 4580:
Optoelectronics, Materials, and Devices for Communications
Tien Pei Lee; Qiming Wang, Editor(s)

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