Abstract
We propose and demonstrate a dual-wavelength external cavity laser (ECL). In our design, a Fabry–Pérot laser diode (FP-LD) is hybrid-integrated with a sampled Bragg grating written in a silica planar lightwave circuit (PLC). The grating selects two laser wavelengths that share the same laser cavity. The dual-wavelength oscillation with a side mode suppression ratio >32 dB has been demonstrated experimentally. Experimental results indicate that the hybrid-integrated dual-wavelength ECL exhibits strong dual-wavelength emission corresponding to beat frequency of 1 THz. Simulations of this system also indicate good mutual coherence of the two modes and stability of the 1 THz beat signal.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
M. Matus, M. Kolesik, J. Moloney, M. Hofmann, S. Koch, J. Opt. Soc. Am. B 21, 1758 (2004)
C. Wang, C. Pan, Opt. Lett. 20, 1292 (1995)
M. Tani, P. Gu, M. Hyodo, K. Sakai, T. Hidaka, Opt. Quantum Electron. 30, 503 (2000)
P. Pellandini, R. Stanley, R. Houdre, U. Oesterle, M. Ilegems, C. Weisbuch, Appl. Phys. Lett. 71, 864 (1997)
M. Brunner, K. Gulden, R. Hovel, M. Moser, J. Carlin, R. Stanley, M. Ilegens, IEEE Photon. Technol. Lett. 12, 1316 (2000)
W. Wang, M. Cada, J. Seregelyi, S. Paquet, S. Mihailov, P. Lu, IEEE Photon. Technol. Lett. 17, 2436 (2005)
C. Tilford, Appl. Opt. 16, 1857 (1977)
B. Hu, M. Nuss, Opt. Lett. 20, 1716 (1995)
J.H. Lim, G. Lim, K.S. Lee, J.H. Song, Y.K. Oh, S.T. Jung, T. Kim, Fiber Integ. Opt. 24, 73 (2005)
J.H. Lim, J.H. Song, R.K. Kim, K.S. Lee, J.R. Kim, IEEE Photon. Technol. Lett. 17, 2430 (2005)
R.K. Kim, J.H. Lim, J.H. Song, K.S. Lee, IEEE Photon. Technol. Lett. 18, 580 (2006)
M. Kolesik, J.V. Moloney, IEEE J. Quantum Electron. QE-37, 936 (2001)
Author information
Authors and Affiliations
Corresponding author
Additional information
PACS
42.79.Dj; 42.60.By; 42.55.Px
Rights and permissions
About this article
Cite this article
Lee, K., Kim, C., Kim, R. et al. Dual-wavelength external cavity laser with a sampled grating formed in a silica PLC waveguide for terahertz beat signal generation. Appl. Phys. B 87, 293–296 (2007). https://doi.org/10.1007/s00340-007-2600-3
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00340-007-2600-3