Abstract

A high-Q microring integrated with a dual-2×2-Mach–Zehnder interferometer coupler is proposed as a low-chirp, low-distortion, low-drive-power, quadrature modulator capable of M-ary quadrature amplitude modulation and phase-shift keyed outputs. The modulation rate can greatly exceed the resonator linewidth and is limited only by the coupler response or free spectral range.

© 2009 Optical Society of America

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References

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2009 (1)

2008 (2)

2007 (3)

2005 (2)

Q. F. Xu, B. Schmidt, S. Pradhan, and M. Lipson, Nature 435, 325 (2005).
[CrossRef] [PubMed]

A. H. Gnauck and P. J. Winzer, J. Lightwave Technol. 23, 115 (2005).
[CrossRef]

2002 (2)

Beausoleil, R. G.

Dalton, L. R.

Dapkus, P. D.

Gnauck, A. H.

Green, W. M. J.

Kaminow, I.

I. Kaminow, T. Li, and A. Willner, eds., Optical Fiber Telecommunications V B: Systems and Networks (Elsevier, 2008), Chap. 2.

Li, T.

I. Kaminow, T. Li, and A. Willner, eds., Optical Fiber Telecommunications V B: Systems and Networks (Elsevier, 2008), Chap. 2.

Li, Y.

Lipson, M.

Q. F. Xu, B. Schmidt, S. Pradhan, and M. Lipson, Nature 435, 325 (2005).
[CrossRef] [PubMed]

Poon, A. W.

Poon, J. K. S.

Pradhan, S.

Q. F. Xu, B. Schmidt, S. Pradhan, and M. Lipson, Nature 435, 325 (2005).
[CrossRef] [PubMed]

Rabiei, P.

Rooks, M. J.

Sacher, W. D.

Schmidt, B.

Q. F. Xu, B. Schmidt, S. Pradhan, and M. Lipson, Nature 435, 325 (2005).
[CrossRef] [PubMed]

Sekaric, L.

Song, M.

Steier, W. H.

Vlasov, Y. A.

Willner, A.

I. Kaminow, T. Li, and A. Willner, eds., Optical Fiber Telecommunications V B: Systems and Networks (Elsevier, 2008), Chap. 2.

Willner, A. E.

Winzer, P. J.

Xu, Q. F.

Q. F. Xu, B. Schmidt, S. Pradhan, and M. Lipson, Nature 435, 325 (2005).
[CrossRef] [PubMed]

Yang, J.

Yang, J.-Y.

Yariv, A.

A. Yariv, IEEE Photon. Technol. Lett. 14, 483 (2002).
[CrossRef]

Zhang, B.

Zhang, C.

Zhang, L.

Zhou, L.

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Figures (2)

Fig. 1
Fig. 1

(a) General coupling-modulated microring. (b) Schematic of a coupling-modulated microring with a dual- 2 × 2 -MZI coupler in push–pull mode. The coupling region is delineated by the dashed box.

Fig. 2
Fig. 2

40 Gb s , 2 11 pseudorandom bit sequence (PRBS) RZ-QPSK coupling modulation of the microring in Fig. 1b. (a) Push–pull drive signals for the I- and Q-channel MZI arms. (b) Normalized output intensity and phase. (c) Normalized circulating intensity. (d) Constellation diagram of the output.

Equations (9)

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T Q ( t ) B ( t ) A = e i θ [ σ ( t ) + κ ( t ) a e i ϕ C 0 A ] ,
C 0 A = e i θ κ 0 * 1 a σ 0 * e i ( ϕ + θ ) ,
σ ( t ) = i 2 cos ( Δ θ I ( t ) + Δ θ Q ( t ) 2 ) 1 2 cos ( Δ θ I ( t ) Δ θ Q ( t ) 2 ) ,
κ ( t ) = i 2 sin ( Δ θ I ( t ) + Δ θ Q ( t ) 2 ) + 1 2 sin ( Δ θ Q ( t ) Δ θ I ( t ) 2 ) .
T Q ( t ) = T s s + G Δ θ Q ( t ) i G Δ θ I ( t ) + M ( t ) ,
T s s = e i θ σ 0 a e i ( ϕ + θ ) 1 a σ 0 * e i ( ϕ + θ ) ,
G a e i ( ϕ + θ + π 4 ) 2 ( C 0 A ) ,
M ( t ) e i ( θ + π 4 ) 4 { Δ θ I , 0 [ Δ θ I ( t ) i Δ θ Q ( t ) ] + Δ θ Q , 0 [ Δ θ Q ( t ) i Δ θ I ( t ) ] } ,
T Q ( t ) = T s s + G Δ θ Q ( t ) i G Δ θ I ( t ) ,

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