Abstract

A simple single-shot frequency chirp characterization technique for telecommunication optical waveforms is introduced. The proposed technique is based on what we believe to be a novel balanced all-optical ultrafast differentiation scheme, and it enables a real-time conversion of the instantaneous frequency variation of an arbitrary complex (amplitude and phase) optical signal into a temporal intensity profile while simultaneously providing an efficient cancellation of the intensity noise. Single-shot real-time frequency chirp measurements of gigahertz-bandwidth phase-only and amplitude and phase temporal modulation waveforms are performed.

© 2009 Optical Society of America

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References

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2007 (2)

2006 (1)

2003 (1)

C. Laverdière, A. Fekecs, and M. Têtu, IEEE Photon. Technol. Lett. 15, 446 (2003).
[CrossRef]

2002 (1)

1998 (1)

J. M. Tang and K. A. Shore, IEEE J. Quantum Electron. 34, 1263 (1998).
[CrossRef]

1994 (1)

R. A. Saunders, J. P. King, and I. Hardcastle, Electron. Lett. 30, 1336 (1994).
[CrossRef]

Azaña, J.

Dorrer, C.

Fekecs, A.

C. Laverdière, A. Fekecs, and M. Têtu, IEEE Photon. Technol. Lett. 15, 446 (2003).
[CrossRef]

Hardcastle, I.

R. A. Saunders, J. P. King, and I. Hardcastle, Electron. Lett. 30, 1336 (1994).
[CrossRef]

Kang, I.

King, J. P.

R. A. Saunders, J. P. King, and I. Hardcastle, Electron. Lett. 30, 1336 (1994).
[CrossRef]

Laverdière, C.

C. Laverdière, A. Fekecs, and M. Têtu, IEEE Photon. Technol. Lett. 15, 446 (2003).
[CrossRef]

Li, F.

Park, Y.

Saunders, R. A.

R. A. Saunders, J. P. King, and I. Hardcastle, Electron. Lett. 30, 1336 (1994).
[CrossRef]

Shore, K. A.

J. M. Tang and K. A. Shore, IEEE J. Quantum Electron. 34, 1263 (1998).
[CrossRef]

Slavík, R.

Tang, J. M.

J. M. Tang and K. A. Shore, IEEE J. Quantum Electron. 34, 1263 (1998).
[CrossRef]

Têtu, M.

C. Laverdière, A. Fekecs, and M. Têtu, IEEE Photon. Technol. Lett. 15, 446 (2003).
[CrossRef]

Electron. Lett. (1)

R. A. Saunders, J. P. King, and I. Hardcastle, Electron. Lett. 30, 1336 (1994).
[CrossRef]

IEEE J. Quantum Electron. (1)

J. M. Tang and K. A. Shore, IEEE J. Quantum Electron. 34, 1263 (1998).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

C. Laverdière, A. Fekecs, and M. Têtu, IEEE Photon. Technol. Lett. 15, 446 (2003).
[CrossRef]

Opt. Lett. (4)

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Figures (3)

Fig. 1
Fig. 1

(a) Schematic of the proposed concept for single-shot instantaneous frequency chirp characterization. (b) Experimental setup. TL, tunable laser; PC, polarization controller; D, detector; RT scope, real-time digitizing oscilloscope; Amp, spectral amplitude.

Fig. 2
Fig. 2

(a) Single-shot measured instantaneous frequency chirp profile and (b) differentiation of the measured electrical signal driving the EO phase modulator. Inset: frequency chirp profiles obtained using a persistent mode acquisition for the random coding.

Fig. 3
Fig. 3

Measured single-shot (gray curve) and 16-time real-time averaged (black curve) instantaneous frequency chirp and temporal intensity profiles.

Equations (2)

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I ± ( t ) = | | s ( t ) | / t | 2 + | s ( t ) | 2 ( ϕ s ( t ) / t ± Δ ω ) 2 .
I ( t ) = I + ( t ) I ( t ) | s ( t ) | 2 ϕ s ( t ) / t .

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