Hybrid silicon lasers for optical interconnects

We propose high-speed modulation of hybrid silicon lasers through modulation of the photon lifetime τp. Two structures are presented to achieve τp-modulation by modifying the distributed loss or the feedback coefficient of the laser cavity. By using small-signal modeling and the finite-difference method, the responses in the frequency and time domains are given. It is shown that it is possible to achieve a 3 dB bandwidth of over 100 GHz and a high data transmission rate of more than 50 GHz. The theoretical analysis also shows that the chirp due to the variations of the carrier densities in the gain/modulation sections is very small.

[1]  Ying-Hao Kuo,et al.  A hybrid AlGaInAs-silicon evanescent preamplifier and photodetector. , 2007, Optics express.

[2]  E.L. Wooten,et al.  A review of lithium niobate modulators for fiber-optic communications systems , 2000, IEEE Journal of Selected Topics in Quantum Electronics.

[3]  G. Arnold,et al.  Modulation behavior of semiconductor injection lasers , 1977 .

[4]  K. A. Shore,et al.  Control of surface‐emitting laser diodes by modulating the distributed Bragg mirror reflectivity: Small‐signal analysis , 1993 .

[5]  Nahum Izhaky,et al.  High-speed optical modulation based on carrier depletion in a silicon waveguide. , 2007, Optics express.

[6]  John E. Bowers,et al.  High-speed InGaAsP constricted-mesa lasers , 1986 .

[7]  Pieter G. Kik,et al.  Strong exciton-erbium coupling in Si nanocrystal-doped SiO2 , 2000 .

[8]  Alexander Fang,et al.  An all-silicon Raman laser , 2005, Nature.

[9]  P. Chen,et al.  Impact-Ionization-Induced Bandwidth-Enhancement of a Si–SiGe-Based Avalanche Photodiode Operating at a Wavelength of 830 nm With a Gain-Bandwidth Product of 428 GHz , 2007, IEEE Photonics Technology Letters.

[10]  G. Dehlinger,et al.  Intersubband electroluminescence from silicon-based quantum cascade structures. , 2000, Science.

[11]  T. Koch,et al.  Nature of wavelength chirping in directly modulated semiconductor lasers , 1984 .

[12]  R. Soref,et al.  Electrooptical effects in silicon , 1987 .

[13]  L. D. Negro,et al.  Optical gain in silicon nanocrystals , 2000, Nature.

[14]  Zheng-Hong Lu,et al.  Quantum confined luminescence in Si/SiO2 superlattices. , 1996 .

[15]  L. Vivien,et al.  Size influence on the propagation loss induced by sidewall roughness in ultrasmall SOI waveguides , 2004, IEEE Photonics Technology Letters.

[16]  Hyundai Park,et al.  1310nm Silicon Evanescent Laser , 2007, 2007 4th IEEE International Conference on Group IV Photonics.

[17]  Rodney S. Tucker,et al.  High-speed modulation of semiconductor lasers , 1985 .

[18]  John E. Bowers,et al.  High speed semiconductor laser design and performance , 1987 .

[19]  J. Bowers,et al.  Electrically pumped hybrid AlGaInAs-silicon evanescent laser. , 2006, Optics express.

[20]  John E. Bowers,et al.  Integrated AlGaInAs-silicon evanescent race track laser and photodetector. , 2007 .