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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 23, Iss. 3 — Mar. 1, 2005
  • pp: 1164–

A Wavelength-Tunable Optical Transmitter Using Semiconductor Optical Amplifiers and an Optical Tunable Filter for Metro/Access DWDM Applications

Jun-ichi Kani and Katsumi Iwatsuki

Journal of Lightwave Technology, Vol. 23, Issue 3, pp. 1164- (2005)


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Abstract

This paper proposes and demonstrates a widely tunable and precisely controllable optical transmitter that uses semiconductor optical amplifiers (SOAs) and an optical tunable filter (OTF) for metro/access dense-wavelength-division-multiplexing (DWDM) systems/networks. The transmitter consists of a fiber-ring-laser section based on SOA(s) and an OTF and a modulation section based on an SOA. First,the requirements imposed on the components intended for the fiber-ring laser are clarified through approximate analyses and basic experiments. To obtain low-noise characteristics, the lower limit of effective OTF bandwidth is investigated by considering the SOA carrier lifetime. For obtaining wavelength precision,the upper limit of the effective OTF bandwidth is derived by considering the SOA ripple effect. Next, the proposed transmitter is demonstrated, where all SOAs are integrated into one planar lightwave circuit (PLC) platform using spot-size converting technology. By designing the fiber-ring-laser section according to the clarified requirements, a wavelength control precision of ±1.75 GHz is achieved while realizing the required relative intensity noise (RIN) from 1540 to 1560 nm. Finally,it is demonstrated that the transmitter can handle signals at up to 1.25 Gb/s.

© 2005 IEEE

Citation
Jun-ichi Kani and Katsumi Iwatsuki, "A Wavelength-Tunable Optical Transmitter Using Semiconductor Optical Amplifiers and an Optical Tunable Filter for Metro/Access DWDM Applications," J. Lightwave Technol. 23, 1164- (2005)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-23-3-1164

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