Abstract

We present an efficient multimode longitudinal pumping scheme which overcomes the main limitations of single-mode longitudinal pumping as well as top pumping in Si-nanoclusters sensitized Erbium-doped waveguide amplifiers. The proposed configuration is based on evanescent pump light coupling from a multimode waveguide to a Si-nanoclusters sensitized Er3+-doped active core. Theoretical predictions, based on propagation and population-rate equations for the coupled Er3+/Si-nanoclusters system, point out that the proposed pumping scheme can provide high pump intensity within the active core, also ensuring good uniformity of the population inversion along the waveguide amplifier. Although longitudinal multimode pumping by high power LEDs in the visible can potentially lead to low cost integrated amplifiers, further material optimization is required. In particular, we show that when dealing with high pump intensities, confined carrier absorption seriously affects the amplifier performance, and an optimization of both Si-nc and Er3+ concentrations is necessary.

© 2007 Optical Society of America

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References

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  1. B. Jalali, S. Fathpour, "Silicon Photonics," J. of Lightwave Technol.,  24, pp. 4600-4615 (2006).
    [CrossRef]
  2. H. Park, A. W. Fang, O. Cohen, R. Jones, M. J. Paniccia, J. E. Bowers, "A Hybrid AlGaInAs-Silicon Evanescent Amplifier," IEEE Photon. Technol. Lett.,  19, 230-232 (2007).
    [CrossRef]
  3. A. W. Fang, H. Park, O. Cohen, R. Jones, M. J. Paniccia, and J. E. Bowers, "Electrically pumped hybrid AlGaInAs-silicon evanescent laser," Opt. Express,  14, 9203-9210 (2006).
    [CrossRef] [PubMed]
  4. S. Ossicini, L. Pavesi, F. Priolo,"Light Emitting Silicon For Microphotonics," Springer Tracts in Modern Physics 194 (Springer-Verlag, Berlin) (2003).
    [CrossRef]
  5. J. H. Shin, J. Lee, H-S. Han, J-H. Jhe, J. S. Chang, S-Y. Seo, H. Lee, N. Park, "Si Nanocluster Sensitization of Er-Doped Silica for Optical Amplet Using Top-Pumping Visible LEDs," IEEE J. Sel. Top. Quantum Electron. 12, 783-796 (2006).Q1
    [CrossRef]
  6. L. H. Slooff, P. G. Kik, A. Tip, A. Polman, "Pumping Planar Waveguide Amplifiers Using A coupled Waveguide System," J. Lightwave Technol. 19, 1740-1744 (2001)
    [CrossRef]
  7. N. Daldosso, D. Navarro-Urrios, M. Melchiorri, C. Garcıa, P. Pellegrino, B. Garrido, C. Sada, G. Battaglin, F. Gourbilleau, R. Rizk, L. Pavesi, "Er-Coupled Si Nanocluster Waveguide," IEEE J. Sel. Top. Quantum Electron. 12, 1607-1617 (2006).Q2
    [CrossRef]
  8. H.E. Hernandez-Figueroa, "Simple Nonparaxial Beam-propagation method for Integrated Optics," J. Lightwave Technol. 12, 644-649 (1994).
    [CrossRef]
  9. G. Clauss and S. Valette, "Optics-integrated structure comprising in a substrate at least a non-buried guide portion and method for making same," US Patent No US 2004/0057690 A1 (2004).
  10. D. Navarro-Urrios, M. Melchiorri, N. Daldosso, L. Pavesi, C. Garcia, P. Pellegrino, B. Garrido, G. Pucker, F. Gourbilleau, and R. Rizk, "Optical losses and gain in silicon-rich silica waveguides containing Er ions" J. Lumin. 121, 249-255 (2006)
    [CrossRef]
  11. K.C. Reichmann, P.P Iannone, M. Birk, N.J. Frigo, D. Barbier, C. Cassagnettes, T. Garret, A. Verlucco, S. Perrier, J. Phlipsen, "A Eight-Wavelength 160-km Transparent Metro WDM Ring Network Featuring Cascaded Erbium-Doped Waveguide Amplifiers," IEEE Photon. Technol. Lett. 13, 1130-1133 (2001).
    [CrossRef]

2007 (1)

H. Park, A. W. Fang, O. Cohen, R. Jones, M. J. Paniccia, J. E. Bowers, "A Hybrid AlGaInAs-Silicon Evanescent Amplifier," IEEE Photon. Technol. Lett.,  19, 230-232 (2007).
[CrossRef]

2006 (5)

A. W. Fang, H. Park, O. Cohen, R. Jones, M. J. Paniccia, and J. E. Bowers, "Electrically pumped hybrid AlGaInAs-silicon evanescent laser," Opt. Express,  14, 9203-9210 (2006).
[CrossRef] [PubMed]

J. H. Shin, J. Lee, H-S. Han, J-H. Jhe, J. S. Chang, S-Y. Seo, H. Lee, N. Park, "Si Nanocluster Sensitization of Er-Doped Silica for Optical Amplet Using Top-Pumping Visible LEDs," IEEE J. Sel. Top. Quantum Electron. 12, 783-796 (2006).Q1
[CrossRef]

N. Daldosso, D. Navarro-Urrios, M. Melchiorri, C. Garcıa, P. Pellegrino, B. Garrido, C. Sada, G. Battaglin, F. Gourbilleau, R. Rizk, L. Pavesi, "Er-Coupled Si Nanocluster Waveguide," IEEE J. Sel. Top. Quantum Electron. 12, 1607-1617 (2006).Q2
[CrossRef]

D. Navarro-Urrios, M. Melchiorri, N. Daldosso, L. Pavesi, C. Garcia, P. Pellegrino, B. Garrido, G. Pucker, F. Gourbilleau, and R. Rizk, "Optical losses and gain in silicon-rich silica waveguides containing Er ions" J. Lumin. 121, 249-255 (2006)
[CrossRef]

B. Jalali, S. Fathpour, "Silicon Photonics," J. of Lightwave Technol.,  24, pp. 4600-4615 (2006).
[CrossRef]

2001 (2)

K.C. Reichmann, P.P Iannone, M. Birk, N.J. Frigo, D. Barbier, C. Cassagnettes, T. Garret, A. Verlucco, S. Perrier, J. Phlipsen, "A Eight-Wavelength 160-km Transparent Metro WDM Ring Network Featuring Cascaded Erbium-Doped Waveguide Amplifiers," IEEE Photon. Technol. Lett. 13, 1130-1133 (2001).
[CrossRef]

L. H. Slooff, P. G. Kik, A. Tip, A. Polman, "Pumping Planar Waveguide Amplifiers Using A coupled Waveguide System," J. Lightwave Technol. 19, 1740-1744 (2001)
[CrossRef]

1994 (1)

H.E. Hernandez-Figueroa, "Simple Nonparaxial Beam-propagation method for Integrated Optics," J. Lightwave Technol. 12, 644-649 (1994).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (2)

J. H. Shin, J. Lee, H-S. Han, J-H. Jhe, J. S. Chang, S-Y. Seo, H. Lee, N. Park, "Si Nanocluster Sensitization of Er-Doped Silica for Optical Amplet Using Top-Pumping Visible LEDs," IEEE J. Sel. Top. Quantum Electron. 12, 783-796 (2006).Q1
[CrossRef]

N. Daldosso, D. Navarro-Urrios, M. Melchiorri, C. Garcıa, P. Pellegrino, B. Garrido, C. Sada, G. Battaglin, F. Gourbilleau, R. Rizk, L. Pavesi, "Er-Coupled Si Nanocluster Waveguide," IEEE J. Sel. Top. Quantum Electron. 12, 1607-1617 (2006).Q2
[CrossRef]

IEEE Photon. Technol. Lett. (2)

H. Park, A. W. Fang, O. Cohen, R. Jones, M. J. Paniccia, J. E. Bowers, "A Hybrid AlGaInAs-Silicon Evanescent Amplifier," IEEE Photon. Technol. Lett.,  19, 230-232 (2007).
[CrossRef]

K.C. Reichmann, P.P Iannone, M. Birk, N.J. Frigo, D. Barbier, C. Cassagnettes, T. Garret, A. Verlucco, S. Perrier, J. Phlipsen, "A Eight-Wavelength 160-km Transparent Metro WDM Ring Network Featuring Cascaded Erbium-Doped Waveguide Amplifiers," IEEE Photon. Technol. Lett. 13, 1130-1133 (2001).
[CrossRef]

J. Lightwave Technol. (2)

L. H. Slooff, P. G. Kik, A. Tip, A. Polman, "Pumping Planar Waveguide Amplifiers Using A coupled Waveguide System," J. Lightwave Technol. 19, 1740-1744 (2001)
[CrossRef]

H.E. Hernandez-Figueroa, "Simple Nonparaxial Beam-propagation method for Integrated Optics," J. Lightwave Technol. 12, 644-649 (1994).
[CrossRef]

J. Lumin. (1)

D. Navarro-Urrios, M. Melchiorri, N. Daldosso, L. Pavesi, C. Garcia, P. Pellegrino, B. Garrido, G. Pucker, F. Gourbilleau, and R. Rizk, "Optical losses and gain in silicon-rich silica waveguides containing Er ions" J. Lumin. 121, 249-255 (2006)
[CrossRef]

J. of Lightwave Technol. (1)

B. Jalali, S. Fathpour, "Silicon Photonics," J. of Lightwave Technol.,  24, pp. 4600-4615 (2006).
[CrossRef]

Opt. Express (1)

Other (2)

S. Ossicini, L. Pavesi, F. Priolo,"Light Emitting Silicon For Microphotonics," Springer Tracts in Modern Physics 194 (Springer-Verlag, Berlin) (2003).
[CrossRef]

G. Clauss and S. Valette, "Optics-integrated structure comprising in a substrate at least a non-buried guide portion and method for making same," US Patent No US 2004/0057690 A1 (2004).

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Figures (5)

Fig. 1.
Fig. 1.

Waveguide structure and refractive indices

Fig. 2.
Fig. 2.

Pump power transfer and average inversion characteristics

Fig. 3.
Fig. 3.

Pump and signal light distributions at waveguide input/output

Fig. 4.
Fig. 4.

Gain versus Si-nc content at different Er concentrations

Fig. 5.
Fig. 5.

Gain versus waveguide length at different pump power densities

Tables (1)

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Table 1. Si-nc Er3+ doped layer parameters

Equations (4)

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2 j β s k os ψ s z = 2 ψ s y 2 + k os 2 ( ε xs β s 2 ) ψ s
2 j β p k op ψ p z = 2 ψ p y 2 + k op 2 ( ε xp β p 2 ) ψ p
ε xs = ε Rxs + j [ n r λ s 2 π ( α s + σ CCA N b + σ 12 N 1 σ 21 N 2 ) ]
ε xp = ε Rxp + j [ n r λ p 2 π ( α p + σ ab N a ) ]

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