Multiwavelength DFB laser array with integrated spot size converters

Ketelsen, L.J.P.; Grenko, J. A.; Sputz, S. K.; Focht, M. W.; Vandenberg, J. M.; Johnson, J.E.; Reynolds, C. L.; Geary, J.; Levkoff, J.; Glogovsky, K.G.; Stampone, D. V.; Chu, S. N. G.; Siegrist, T.; Pernell, T. L.; Walters, F.S.; Sheridan-Eng, J.; Lentz, J.L.; Alam, M.A.; People, R.; Hybertsen, Mark S.; Isaacs, E. D.; Evans‐Lutterodt, K.; Leibenguth, R.E.; Przybyiek, G.J.; Zhang, L.; Feder, K.; Shunk, S.; Tennant, D. M.; Peticolas, L. J.; Romero, D.; Freund, J. M.; Falk, Benjamin; Tzafaras, N.; Smith, L. E.; Luther, L. C.; Geva, M.; Gault, William A.; Zilko, J. L.

doi:10.1109/3.845717

Cited by 11 publications

(2 citation statements)

References 13 publications

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“…Therefore, high-precision control for the wavelength is required in the DWDM technology [5]. In an actual DWDM system, the DFB laser array is a good candidate for the multiwavelength source, owing to its stable lasing wavelengths [6]. In a normal DFB laser, the wavelength is defined mainly by its grating period.…”

Section: Introductionmentioning

confidence: 99%

Experimental Demonstration of π Equivalent Phase-Shifted SBG Laser With Controlled Distributed Phase Shift

et al. 2019

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We designed and fabricated a π equivalent phase-shifted sampled Bragg grating (SBG) semiconductor laser with a controlled distributed phase shift. The phase shift is equivalently realized with reconstruction-equivalent-chirp (REC) technique. The laser is divided into three sections with the same length. By injecting different currents into the side and middle sections, a distributed phase shift can be introduced. The lasing wavelength can be continuously tuned by the injection currents. In our experiment, when the total current keeps 130 mA, the lasing wavelength can be continuously tuned by 1.2 nm. During the tuning, the side mode suppression ratio keeps above 40 dB and the output power varies only 1.3 dB. Therefore, the proposed method provides an alternative solution for the multiwavelength laser arrays in dense wavelength-division multiplexing (DWDM) systems.

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Section: Introductionmentioning

confidence: 99%

Experimental Demonstration of π Equivalent Phase-Shifted SBG Laser With Controlled Distributed Phase Shift

et al. 2019

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“…Various approaches have been demonstrated to generate multi-wavelength laser. These approaches include the erbium-doped fiber laser with a comb filter or fiber Bragg gratings (FBGs) defining the lasing wavelengths [1,2], DFB laser array with each single laser operating at different wavelength [3], a semiconductor laser (LD) by tailoring the electronic states and electron relaxation times in the material [4], or a actively mode-locked semiconductor laser constructed by a single semiconductor optical amplifier and a WDM filter [5]. In this paper, a possible method to generate multi-wavelength laser has been presented in a fiber grating external cavity semiconductor laser (FGECSL) by using the fiber gratings with different reflection wavelengths and reflectivity.…”

Section: Introductionmentioning

confidence: 99%

A Possible Approach to Generate Multi-wavelength Output in a Fiber Grating External Cavity Semiconductor Laser

Guang-Qiong¹,

Liu²,

Wu³

et al. 2004

Journal of Optical Communications

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Taking into account the physical fact that the multi-wavelength output in a laser can be realized when the thresholds in all the desired wavelengths are the same, a possible method to generate multi-wavelength output has been presented in this paper, which is based on a fiber grating external cavity semiconductor laser through selecting correctly the reflectivity arrangement of fiber grating in all desired wavelengths. As a result, the analytical expressions of fiber grating reflectivity allotment and the multi-wavelength output bandwidth (defined as the wavelength range that the multi-wavelength output can be generated) have been derived, and the numerical simulations have also been given.

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