Abstract

Spatial heterodyne spectrometers (SHS) can achieve high resolution with excellent optical throughput. We demonstrate a planar waveguide SHS incorporating 64 asymmetric Mach–Zehnder interferometers and show measurements that verify 1GHz resolution across a 64GHz measurement range.

© 2011 Optical Society of America

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References

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2011

N. K. Fontaine, K. Okamoto, T. Su, and S. J. B. Yoo, in Optical Fiber Communications Conference (Optical Society of America, 2011), p. OWM2.

2010

2007

2006

2005

2003

G. D. VanWiggeren and D. M. Baney, IEEE Photon. Technol. Lett. 15, 1267 (2003).
[CrossRef]

2002

Aoyagi, H.

Baney, D. M.

G. D. VanWiggeren and D. M. Baney, IEEE Photon. Technol. Lett. 15, 1267 (2003).
[CrossRef]

Bland-Hawthorn, J.

Cardon, J. G.

Cheben, P.

Conway, R. R.

Corliss, J.

Englert, C. R.

Florjanczyk, M.

Fontaine, N. K.

N. K. Fontaine, K. Okamoto, T. Su, and S. J. B. Yoo, in Optical Fiber Communications Conference (Optical Society of America, 2011), p. OWM2.

Harlander, J. M.

Harris, W. M.

Haynes, R.

Janz, S.

Lægsgaard, J.

Lawler, J. E.

Maack, M. D.

Noordegraaf, D.

Okamoto, K.

N. K. Fontaine, K. Okamoto, T. Su, and S. J. B. Yoo, in Optical Fiber Communications Conference (Optical Society of America, 2011), p. OWM2.

K. Okamoto, H. Aoyagi, and K. Takada, Opt. Lett. 35, 2103 (2010).
[CrossRef] [PubMed]

Powell, I.

Roesler, F. L.

Scott, A.

Skovgaard, P. M. W.

Solheim, B.

Su, T.

N. K. Fontaine, K. Okamoto, T. Su, and S. J. B. Yoo, in Optical Fiber Communications Conference (Optical Society of America, 2011), p. OWM2.

Takada, K.

VanWiggeren, G. D.

G. D. VanWiggeren and D. M. Baney, IEEE Photon. Technol. Lett. 15, 1267 (2003).
[CrossRef]

Xu, D.-X.

Yoo, S. J. B.

N. K. Fontaine, K. Okamoto, T. Su, and S. J. B. Yoo, in Optical Fiber Communications Conference (Optical Society of America, 2011), p. OWM2.

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Figures (4)

Fig. 1
Fig. 1

(a) Sample input spectrum and (b) its discrete cosine transform (DCT). (c) Layout of 64-channel SHS and (d) measurement range selection filter. (e) Illustration of cascaded AWG transmission.

Fig. 2
Fig. 2

Transmission measurements of AMZI outputs H k ( + ) ( ω ) (blue) and H k ( ) ( ω ) (red) for (a)  k = 35 and (b)  k = 64 . (c)  H k ( ω ) (blue) compared to a cosine fit (gray). (d)  H k ( ω ) for all AMZI and (e) the measured phase errors.

Fig. 3
Fig. 3

Single-frequency spectrum measurements. (a),(c) single-ended coefficients p k (blue) and q k (red). (b),(d) Normalized coefficients. Retrieval of 1550.35 nm line (e) without and (f) with phase-error correction. (g),(h),(i),(j) Additional measurements. In (e),(f) dots are discrete spectral data, and lines are Fourier interpolated.

Fig. 4
Fig. 4

Two-line results with (a)  10 GHz separation and (b)  2 GHz separation. Inset, measurement with OSA.

Equations (1)

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P k = p k q k q k + p k = 1 S f 0 f 0 + FSR / 2 s ( f ) cos ( β ( k 1 ) Δ L + ϕ k ) d f ,

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