Abstract

We demonstrate a simplified algorithm to manifest the contribution of amplified spontaneous emission in variable gain-flattened Erbium-doped fiber amplifier (EDFA). The detected signal power at the input and output ports of EDFA comprises of both signal and noise. The generated amplified spontaneous emission from EDFA cannot be differentiated by photodetector which leads to underestimation of the targeted gain value. This gain penalty must be taken into consideration in order to obtain the accurate gain level. By taking the average gain penalty within the dynamic gain range, the targeted output power is set higher than the desired level. Thus, the errors are significantly reduced to less than 0.15 dB from 15 dB to 30 dB desired gain values.

©2009 Optical Society of America

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References

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  1. D. C. Kilper and W. Weingartner, “Monitoring optical network performance degradation due to amplifier noise,” J. Lightwave Technol. 21(5), 1171–1178 (2003).
    [Crossref]
  2. S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
    [Crossref]
  3. J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
    [Crossref]
  4. A. J. Strentz, T. C. Jones, K. R. Roberts, and S. W. Granlund, “Optical amplifier having automatic gain control using the amplified spontaneous emission as the monitoring parameter,” US Patent 7,019,894 B1, March 28, 2006.
  5. H. Yoon, S. Bae, S. J. Ahn, and N. Park, “Reference level free multichannel gain equalization and transient gain suppression of EDFA with differential ASE power monitoring,” IEEE Photon. Technol. Lett. 11(3), 316–318 (1999).
    [Crossref]
  6. S. Aozasa, H. Masuda, M. Shimizu, and M. Yamada, “Novel gain spectrum control method employing gain clamping and pump power adjustment in Thulium-doped fiber amplifier,” J. Lightwave Technol. 26(10), 1274–1281 (2008).
    [Crossref]
  7. L. Qiao and P. J. Vella, “ASE analysis and correction for EDFA automatic control,” J. Lightwave Technol. 25(3), 771–778 (2007).
    [Crossref]
  8. P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
    [Crossref]
  9. M. J. Yadlowsky, “Pump wavelength-dependent spectral-hole burning in EDFA’s,” J. Lightwave Technol. 17(9), 1643–1648 (1999).
    [Crossref]
  10. M. Bolshtyansky, “Spectral hole burning in Erbium-doped fiber amplifiers,” J. Lightwave Technol. 21(4), 1032–1038 (2003).
    [Crossref]

2008 (1)

2007 (1)

2005 (1)

J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
[Crossref]

2003 (2)

1999 (2)

M. J. Yadlowsky, “Pump wavelength-dependent spectral-hole burning in EDFA’s,” J. Lightwave Technol. 17(9), 1643–1648 (1999).
[Crossref]

H. Yoon, S. Bae, S. J. Ahn, and N. Park, “Reference level free multichannel gain equalization and transient gain suppression of EDFA with differential ASE power monitoring,” IEEE Photon. Technol. Lett. 11(3), 316–318 (1999).
[Crossref]

1998 (1)

S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
[Crossref]

1997 (1)

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

Ahn, S. J.

H. Yoon, S. Bae, S. J. Ahn, and N. Park, “Reference level free multichannel gain equalization and transient gain suppression of EDFA with differential ASE power monitoring,” IEEE Photon. Technol. Lett. 11(3), 316–318 (1999).
[Crossref]

Andrejco, M.

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

Aozasa, S.

Bae, J.

J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
[Crossref]

Bae, J. K.

J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
[Crossref]

Bae, S.

H. Yoon, S. Bae, S. J. Ahn, and N. Park, “Reference level free multichannel gain equalization and transient gain suppression of EDFA with differential ASE power monitoring,” IEEE Photon. Technol. Lett. 11(3), 316–318 (1999).
[Crossref]

Bolshtyansky, M.

Espindola, R.

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

Judkins, J.

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

Kang, S. M.

S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
[Crossref]

Kilper, D. C.

Kim, H. K.

S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
[Crossref]

Kim, S. H.

J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
[Crossref]

Lee, S. B.

J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
[Crossref]

Lyu, G. Y.

S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
[Crossref]

Masuda, H.

Park, N.

J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
[Crossref]

H. Yoon, S. Bae, S. J. Ahn, and N. Park, “Reference level free multichannel gain equalization and transient gain suppression of EDFA with differential ASE power monitoring,” IEEE Photon. Technol. Lett. 11(3), 316–318 (1999).
[Crossref]

Park, S. Y.

S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
[Crossref]

Qiao, L.

Shimizu, M.

Shin, S.-Y.

S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
[Crossref]

Vella, P. J.

Vengsarkar, A.

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

Walker, K.

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

Weingartner, W.

Wysocki, P. F.

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

Yadlowsky, M. J.

Yamada, M.

Yoon, H.

H. Yoon, S. Bae, S. J. Ahn, and N. Park, “Reference level free multichannel gain equalization and transient gain suppression of EDFA with differential ASE power monitoring,” IEEE Photon. Technol. Lett. 11(3), 316–318 (1999).
[Crossref]

IEEE Photon. Technol. Lett. (4)

S. Y. Park, H. K. Kim, G. Y. Lyu, S. M. Kang, and S.-Y. Shin, “Dynamic gain and output power control in a gain-flattened Erbium-doped fiber amplifier,” IEEE Photon. Technol. Lett. 10(6), 787–789 (1998).
[Crossref]

J. K. Bae, J. Bae, S. H. Kim, N. Park, and S. B. Lee, “Dynamic EDFA gain-flattening filter using two LPFGs with divided coil heaters,” IEEE Photon. Technol. Lett. 17(6), 1226–1228 (2005).
[Crossref]

H. Yoon, S. Bae, S. J. Ahn, and N. Park, “Reference level free multichannel gain equalization and transient gain suppression of EDFA with differential ASE power monitoring,” IEEE Photon. Technol. Lett. 11(3), 316–318 (1999).
[Crossref]

P. F. Wysocki, J. Judkins, R. Espindola, M. Andrejco, A. Vengsarkar, and K. Walker, “Broad-band erbium-doped fiber amplifier flattened beyond 40 nm using long-period grating,” IEEE Photon. Technol. Lett. 9(10), 1343–1345 (1997).
[Crossref]

J. Lightwave Technol. (5)

Other (1)

A. J. Strentz, T. C. Jones, K. R. Roberts, and S. W. Granlund, “Optical amplifier having automatic gain control using the amplified spontaneous emission as the monitoring parameter,” US Patent 7,019,894 B1, March 28, 2006.

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Figures (7)

Fig. 1
Fig. 1 Block diagram of the 4-stage Erbium-doped fiber amplifier.
Fig. 2
Fig. 2 Transmission spectrum of GEF used in the 4-stage EDFA.
Fig. 3
Fig. 3 Output spectrum at 30 dB gain with (a) −19 dBm total signal power and (b) −26 dBm total signal power.
Fig. 4
Fig. 4 Relationship between output signal power and input signal power.
Fig. 5
Fig. 5 Gain penalty at different gain levels due to ASE contribution.
Fig. 6
Fig. 6 Expected gain penalty at different gain levels due to ASE contribution.
Fig. 7
Fig. 7 Gain performance of 4-stage EDFA with ASE compensation algorithm.

Tables (1)

Tables Icon

Table 1 Design specification of the variable gain-flattened EDFA.

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