Distributed Feedback Laser Using Buried Dielectric Grating

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In this paper, we report a DFB laser diode with a buried SiO2 grating. Epitaxy lateral overgrowth by metalorganic chemical vapour deposition (MOCVD) is conducted to grow the p-type InP cladding layers in the nano-patterned dielectric grating template. The large refractive index difference between SiO2 and InP results an index coupling coefficient κ of about 250 cm-1. The fabricated DFB laser showed a side mode suppression ratio larger than 45 dB measured. The technology developed can also be used for other applications that require high efficiency grating structure.

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Edited by:

S. J. CHUA, J. H. TENG, O. WADA, R. DE LA RUE and X. H. TANG

Pages:

189-191

Citation:

J. H. Teng et al., "Distributed Feedback Laser Using Buried Dielectric Grating", Advanced Materials Research, Vol. 31, pp. 189-191, 2008

Online since:

November 2007

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[1] Satoshi Oku, Tetuyoshi Ishii, Ryuzo Iga, and Takuo Hirono, IEEE J. Sel. Top. Quantum Electron., Vol. 5 (1999), p.682.

[2] M. Imada, S. Noda, H. Kobayashi, and G. Sasaki, IEEE J. Quantum Electron., Vol. 35 (1999), p.1277.

[3] H. Abe, S.G. Ayling, J.H. Marsh, R.M. De La Rue and J.S. Roberts, IEEE Photon. Tech. Lett., Vol 7, (1995) p.452.

[4] P. C. Ku, Jacob A. Hernandez, and C. J. Chang-Hasnain, IEEE Photon. Technol. Lett., Vol. 15 (2003), p.75.

[5] Chih-Wei Hu et al. IEEE Photon. Technol. Lett. Vol. 18 (2006), p.1551.

[6] S. W. Park, C. K. Moon, J. C. Han, and J. I. Song, IEEE Photon. Technol. Lett., Vol. 16 (2004), p.1426. 0 2 4 6 8.

00.

01.

02.

03.

04.

053. 3344.

[3] 2344.

[3] 0344.

[2] 8344.

[2] 6344.

[2] 4344.

[2] 2344.

[2] 1344.

[1] 9344.

[1] 7344.

[1] 5344 }n2 Coupling Coefficient (µµµµm-1 ) Refractive Index Differences ( n12 -n2 2 ) GD=0. 05µm, GT=0. 6µm GD=0. 03µm, GT=0. 3µm GD : Grating Depth GT : Guiding Thickness Fig. 3. Coupling coefficient for choice of different grating materials Fig. 4. TEM picture of the ELO grown InP in the SiO2 template.

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