Abstract

The phase and amplitude responses of a narrowband optical filter are measured simultaneously using a microwave network analyzer. The measurement is based on an interferometric arrangement to an split optical carrier into two paths and then combine them. In one of the two paths, a Mach–Zehnder modulator generates two tones without carrier, and the narrowband optical filter just passes through one of the tones with the inclusion of its amplitude and phase responses. The temperature and environmental variations are removed by separated phase and amplitude averaging. The amplitude and phase responses of the optical filter are measured to the resolution and accuracy of the network analyzer.

© 2006 IEEE

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Appl. Opt. (1)

Electron. Lett. (1)

D. Mahgerefteh, Y. Matsui, C. Liao, B. Johnson, D. Walker, X. Zheng, Z.-F. Fan, K. McCallion, P. Tayebati, "Error-free 250 km transmission in standard fibre using compact 10 Gb/s chirp-managed directly modulated lasers (CML) at 1550 nm," Electron. Lett. 41, 542-544 (2005).

Hewlett-Packard J. (1)

K. R. Wildnauer, Z. Azary, "A double-pass monochromator for wavelength selection in an optical spectrum analyzer," Hewlett-Packard J. 44, 68-74 (1993).

IEEE J. Quantum Electron. (2)

S. Bigo, "Multiterabit/s DWDM terrestrial transmission with bandwidth limiting optical filtering," IEEE J. Quantum Electron. 10, 329-340 (2004).

B. Costa, D. Mazzoni, M. Puleo, E. Vezzoni, "Phase shift technique for the measurement of chromatic dispersion in optical fibers using LEDs," IEEE J. Quantum Electron. QE-18, 1509-1515 (1982).

IEEE Photon. Technol. Lett. (5)

T. Niemi, M. Uusimaa, H. Ludvigsen, "Limitations of phase-shift method in measuring dense group delay ripple of fiber Bragg gratings," IEEE Photon. Technol. Lett. 13, 1334-1336 (2001).

R. Fortenberry, W. V. Sorin, P. Hernday, "Improvement of group delay measurement accuracy using a two-frequency modulation phase shift method," IEEE Photon. Technol. Lett. 15, 736-738 (2003).

K.-P. Ho, H.-C. Wang, H.-K. Chen, C.-C. Wu, "Electric field characterization for phase-modulated signals using measured spectrogram," IEEE Photon. Technol. Lett. 17, 2143-2145 (2005).

L.-S. Yan, C. Yu, Y. Wang, T. Luo, L. Paraschis, Y. Shi, A. E. Willner, "40-Gb/s transmission over 25 km of negative-dispersion fiber using asymmetric narrow-band filtering of a commercial directly modulated DFB laser," IEEE Photon. Technol. Lett. 17, 1322-1324 (2005).

K.-P. Ho, S.-K. Liaw, C. Lin, "Efficient photonic mixer with frequency doubling," IEEE Photon. Technol. Lett. 9, 511-513 (1997).

J. Lightw. Technol. (2)

C. Rasmussen, T. Fjelde, J. Bennike, F. Liu, S. Dey, B. Mikkelsen, P. Mamyshev, P. Serbe, P. van de Wagt, Y. Akasaka, D. Harris, D. Gapontsev, V. Ivshin, P. Reeves-Hall, "DWDM 40G transmission over trans-Pacific distance (10 000 km) using CSRZ-DPSK, enhanced FEC and all-Raman amplified 100 km ultra-wave fiber spans," J. Lightw. Technol. 22, 203-207 (2004).

A. H. Gnauck, P. J. Winzer, "Optical phase-shift-keyed transmission," J. Lightw. Technol. 23, 115-130 (2005).

Opt. Express (1)

Rev. Sci. Instrum. (1)

R. Trebino, K. W. DeLong, D. N. Fittinghoff, J. N. Sweetser, M. A. Krumbügel, B. A. Richman, D. J. Kane, "Measuring ultrashort laser pulses in the time–frequency domain using frequency-resolved optical gating," Rev. Sci. Instrum. 68, 3277-3295 (1997).

Other (5)

H.-K. Chen, H.-C. Wang, C.-C. Wu, K.-P. Ho, "Generation of 10-Gb/s low-chirp on-off keying signals by passively-filtered and directly modulated of a 1.55-$\mu\hbox{m}$ semiconductor laser," Proc. OECC (2005) pp. 518-519.

K.-P. Ho, Phase-Modulated Optical Communication Systems (Springer-Verlag, 2005).

ANSI/TIA-455-175-B FOTP175 IEC60793-1-42Optical Fibres Part 1-42: Measurement Methods and Test Procedures—Chromatic Dispersion .

P. Hernday, Fiber Optic Test and Measurement (Prentice-Hall, 1998).

Agilent Application Note 1287-2Exploring the Architectures of Network Analyzers (2002).

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