Influence of mode competition on the fast wavelength switching of an SG-DBR laser

Because the sampled grating distributed Bragg reflector (SG-DBR) laser is among the most attractive sources for wavelength division multiplexing (WDM) systems, it is important and necessary to investigate its wavelength switching characteristics. This behavior will set the capability limits for reallocation in wavelength-routed optical networks. In this paper, that mode competition plays an important role in the wavelength switching dynamics of DBR-type tunable lasers is confirmed experimentally. By using a time-resolved spectrum technique, the loss-dependent mode competition behavior has been directly observed, for the first time, from measurements of wavelength switching on an SG-DBR laser.

[1]  F. Delorme,et al.  Widely tunable 1.55-/spl mu/m lasers for wavelength-division-multiplexed optical fiber communications , 1998 .

[2]  G. Mulvihill,et al.  Fast wavelength switching of a high-speed SG-DBR laser for dynamic wavelength routing , 2000, LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No.00CH37080).

[3]  M.G. Davis,et al.  Time-resolved spectral measurements on a multielectrode DFB laser using a Fabry-Perot interferometer , 1994, IEEE Photonics Technology Letters.

[4]  Ronan O'Dowd.  Tunable and Agile Laser Transmitter Developments for Future DWDM Optical Networks: Towards Managed Wavelength Control and Switching Invited Paper , 2004, Photonic Network Communications.

[5]  L. Coldren,et al.  Theory, design, and performance of extended tuning range semiconductor lasers with sampled gratings , 1993 .

[6]  P. J. Matthews,et al.  A high-speed mixed digital-to-analog circuit board for accurate control of wavelength tunable lasers for fiber-optic communications , 1999 .

[7]  V. Curri,et al.  All-optical label swapping with wavelength conversion for WDM-IP networks with subcarrier multiplexed addressing , 1999, IEEE Photonics Technology Letters.

[8]  D. Blumenthal,et al.  Detailed transfer matrix method-based dynamic model for multisection widely tunable GCSR lasers , 2000, Journal of Lightwave Technology.

[9]  Lintao Zhang,et al.  Fast wavelength switching of three-section DBR lasers , 1995 .

[11]  D. Sadot,et al.  Optical switching speed requirements for terabit/second packet over WDM networks , 2000, IEEE Photonics Technology Letters.