학술논문
Multiwavelength DFB laser array with integrated spot size converters
Document Type
Periodical
Author
Ketelsen, L.J.P.; Grenko, J.A.; Sputz, S.K.; Focht, M.W.; Vandenberg, J.M.; Johnson, J.E.; Reynolds, C.L.; Geary, J.M.; 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, M.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.M.; Freund, J.M.; Falk, B.S.; Tzafaras, N.N.; Smith, L.E.; Luther, L.C.; Geva, M.; Gault, W.A.; Zilko, J.L.
Source
IEEE Journal of Quantum Electronics IEEE J. Quantum Electron. Quantum Electronics, IEEE Journal of. 36(6):641-648 Jun, 2000
Subject
Language
ISSN
0018-9197
1558-1713
1558-1713
Abstract
We describe the design, fabrication, and performance of a five-element quarterwave-shifted distributed feedback laser array with monolithically integrated spot size converters intended for use as a multiple-wavelength source in dense wavelength-division telecommunications systems. Facet power in excess of 10 mW with less than 150 mA bias and longitudinal side mode suppression greater than 40 dB were routinely achieved. Narrow far-field full-width at half-maximum angles of 6.9/spl deg//spl times/16.3/spl deg/ provided 3.5-dB coupling loss into single-mode fiber with 1.0-dB misalignment tolerances of /spl plusmn/2.0 /spl mu/m. With /spl plusmn/10/spl deg/C thermal tuning, 22 1555-nm channels spaced by 50 GHz were accessed with this device. Thorough field evaluation indicates that such a device is consistent with manufacturing requirements.