TY - GEN
T1 - Numerical analysis for optical frequency comb generated by semiconductor Mach-Zehnder modulator
AU - Yokota, Nobuhide
AU - Miki, Takahiro
AU - Abe, Koichiro
AU - Yasaka, Hiroshi
AU - Yamada, Eiichi
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/30
Y1 - 2015/11/30
N2 - We investigated an optical frequency comb generated by an InP-based semiconductor Mach-Zehnder (MZ) modulator by using a numerical model that takes into account the nonlinear change of a refractive index and an optical absorption induced by an applied voltage in the modulator. Such nonlinearities are negligible for conventional LiNbO3-based MZ modulators but not negligible for semiconductor MZ modulators. The numerical model quantitatively reproduced our experimental data reported previously. We found that the nonlinearities play an important role to obtain the flat 9-channel optical frequency comb block with an intensity deviation of less than 1 dB, when a moderate RF drive voltage of < 5 V was used. This result was sustained regardless of an RF drive voltage ratio between two arms in the MZ modulator.
AB - We investigated an optical frequency comb generated by an InP-based semiconductor Mach-Zehnder (MZ) modulator by using a numerical model that takes into account the nonlinear change of a refractive index and an optical absorption induced by an applied voltage in the modulator. Such nonlinearities are negligible for conventional LiNbO3-based MZ modulators but not negligible for semiconductor MZ modulators. The numerical model quantitatively reproduced our experimental data reported previously. We found that the nonlinearities play an important role to obtain the flat 9-channel optical frequency comb block with an intensity deviation of less than 1 dB, when a moderate RF drive voltage of < 5 V was used. This result was sustained regardless of an RF drive voltage ratio between two arms in the MZ modulator.
KW - Mach-Zehnder modulator
KW - optical frequency comb
KW - semiconductor optical modulator
KW - sideband generation
UR - http://www.scopus.com/inward/record.url?scp=84960850774&partnerID=8YFLogxK
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U2 - 10.1109/OECC.2015.7340262
DO - 10.1109/OECC.2015.7340262
M3 - Conference contribution
AN - SCOPUS:84960850774
T3 - 2015 Opto-Electronics and Communications Conference, OECC 2015
BT - 2015 Opto-Electronics and Communications Conference, OECC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Opto-Electronics and Communications Conference, OECC 2015
Y2 - 28 June 2015 through 2 July 2015
ER -