Microwave photonic bandpass filter using a multiwavelength semiconductor-optical-amplifier ring laser

Duan Liu; Nam Quoc Ngo; Swee Chuan Tjin

doi:10.1117/1.2720821

1 May 2007 Microwave photonic bandpass filter using a multiwavelength semiconductor-optical-amplifier ring laser

Duan Liu, Nam Quoc Ngo, Swee Chuan Tjin

Author Affiliations +

Optical Engineering, Vol. 46, Issue 5, 054401 (May 2007). https://doi.org/10.1117/1.2720821

Abstract

This paper presents the proposal and experimental demonstration of a microwave photonic bandpass filter structure based on a multiwavelength semiconductor optical amplifier (SOA) ring laser, an optical phase modulator, and a segment of single-mode fiber as a dispersive element. Experimental results show multiple-tap microwave photonic bandpass filter by using a power-equalized multiwavelength SOA ring laser as the optical source. Two laser configurations, one with a linearly chirped fiber Bragg grating (LCFBG) to compensate the dispersion of the laser cavity and one without the LCFBG, are compared for their multiwavelength laser outputs and the corresponding microwave photonic bandpass filters' response. The two microwave photonic bandpass filters have free spectral ranges (FSRs) ~1.26 GHz and 1.85 GHz. The maximal main-to-secondary sidelobe ratio of the microwave filter is above 10 dB.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Duan Liu, Nam Quoc Ngo, and Swee Chuan Tjin "Microwave photonic bandpass filter using a multiwavelength semiconductor-optical-amplifier ring laser," Optical Engineering 46(5), 054401 (1 May 2007). https://doi.org/10.1117/1.2720821

Published: 1 May 2007

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