Abstract

Reflective phase compensator (RPC) filters provide a solution to the phase-dispersion problem of narrow bandpass (NBP) filters when the data rate is 40 Gbits/s or greater. By use of an RPC filter to compensate for the excessive group-delay (GD) ripple of an NBP filter, the GD ripple of the combined NBP+RPC filter is well under the required 2.5 ps.

© 2002 Optical Society of America

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References

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  1. A. Thelen, M. Tilsch, A. Tikhonravov, M. K. Trubetskov, U. Brauneck, “Topical Meeting on Optical Interference Coatings (OIC’2001): design contest results,” Appl. Opt. 41, 3022–3038.
  2. A. Thelen, JCM, D-60439 Frankfurt, Germany; A. Tikhonravov, M. K. Trubetskov, M. A. Kokarev, personal communication, 2001.
  3. TFCalc 3.5 and TFCalc/WDM are products developed by Software Spectra, Inc.

Brauneck, U.

Kokarev, M. A.

A. Thelen, JCM, D-60439 Frankfurt, Germany; A. Tikhonravov, M. K. Trubetskov, M. A. Kokarev, personal communication, 2001.

Thelen, A.

Tikhonravov, A.

Tilsch, M.

Trubetskov, M. K.

Appl. Opt.

Other

A. Thelen, JCM, D-60439 Frankfurt, Germany; A. Tikhonravov, M. K. Trubetskov, M. A. Kokarev, personal communication, 2001.

TFCalc 3.5 and TFCalc/WDM are products developed by Software Spectra, Inc.

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Figures (4)

Fig. 1
Fig. 1

Transmittance and GD of the NBP design Air 1.2713L 0.3968H L(HL)6 6H L(HL)15 8H L(HL)19 4H L(HL)19 8H L(HL)15 6H L(HL)6 Glass.

Fig. 2
Fig. 2

Group delay dispersion of the NBP design in Fig. 1.

Fig. 3
Fig. 3

Reflectance and group delay of the NOE4 RPC design.

Fig. 4
Fig. 4

Combined performance of the NBP+NOE4 designs in the passband.

Tables (1)

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Table 1 Structure of the RPC Designs NOE3 and NOE4

Equations (3)

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GDRPC=-GDNBP+constant
GDDRPC=-GDDNBP,
Fx=1ni=1n |GDDRPCx, λi+GDDNBPλi|k1/k,

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