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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 18, Iss. 8 — Aug. 1, 2000
  • pp: 1128–

Control of Widely Tunable SSG-DBR Lasers for Dense Wavelength Division Multiplexing

Gert Sarlet, Geert Morthier, and Roel Baets

Journal of Lightwave Technology, Vol. 18, Issue 8, pp. 1128- (2000)


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Abstract

This paper presents a general discussion on the control of widely tunable super structure grating distributed Bragg reflector (SSG-DBR) lasers. A feedback control scheme is presented that ensures frequency stability and accuracy (better than 0.5 GHz), as well as high side mode suppression ratio (>35 dB). The active section voltage is monitored to maintain mode stability and a highly stable Fabry-Perot etalon is used as a reference to lock the laser frequency to a specific ITU channel. It is shown that stability can even be maintained when directly modulating the laser at 1.244 Gb/s. Furthermore,a characterization scheme is demonstrated that uses the voltage monitoring to generate a look-up table of operation points very efficiently and accurately. For all operation points, the frequency accuracy is better than 0.5 GHz and the side mode suppression ratio is above 35 dB.

[IEEE ]

Citation
Gert Sarlet, Geert Morthier, and Roel Baets, "Control of Widely Tunable SSG-DBR Lasers for Dense Wavelength Division Multiplexing," J. Lightwave Technol. 18, 1128- (2000)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-18-8-1128

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