Abstract

A method to reduce the optical degrading effect of coating stress in a thin-film filter by releasing the filter from the substrate on which it was deposited is described. An extremely challenging 8-skip-0 100GHz wavelength-division-multiplexing band-splitting filter is demonstrated.

© 2006 Optical Society of America

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References

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  1. N. A. O'Brien, M. J. Cumbo, K. D. Hendrix, R. B. Sargent, and M. K. Tilsch, 'Recent advances in thin film interference filters for telecommunications,' in SVC 2001, 44th Technical Conference Proceedings, (Society of Vacuum Coaters, New Mexico, 2001), pp. 255-2601.
  2. G. J. Ockenfuss, N. A. O'Brien, and E. Williams, 'Ultra-low stress coating process: an enabling technology for extreme performance thin film interference filters,' in Optical Fiber Communication Conference (OFC), Postconference Digest, Vol. 70 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2002), postdeadline paper FA8.
    [CrossRef]
  3. S. L. Prins, A. C. Barron, W. C. Herrmann, and J. R. McNeil, 'Effect of stress on performance of dense wavelength division multiplexing filters: optical properties,' Appl. Opt. 43, 626-632 (2004).
    [CrossRef] [PubMed]
  4. G. J. Ockenfuss and R. E. Klinger, 'Stress free thermally stabilized dielectric optical filters,' European patent EP1,262,803 (4 December 2002).
  5. H. Takahashi, 'Temperature stability of thin-film narrow-bandpass filters produced by ion-assisted deposition,' Appl. Opt. 34, 667-675 (1995).
    [CrossRef]

2004 (1)

1995 (1)

Barron, A. C.

Cumbo, M. J.

N. A. O'Brien, M. J. Cumbo, K. D. Hendrix, R. B. Sargent, and M. K. Tilsch, 'Recent advances in thin film interference filters for telecommunications,' in SVC 2001, 44th Technical Conference Proceedings, (Society of Vacuum Coaters, New Mexico, 2001), pp. 255-2601.

Hendrix, K. D.

N. A. O'Brien, M. J. Cumbo, K. D. Hendrix, R. B. Sargent, and M. K. Tilsch, 'Recent advances in thin film interference filters for telecommunications,' in SVC 2001, 44th Technical Conference Proceedings, (Society of Vacuum Coaters, New Mexico, 2001), pp. 255-2601.

Herrmann, W. C.

Klinger, R. E.

G. J. Ockenfuss and R. E. Klinger, 'Stress free thermally stabilized dielectric optical filters,' European patent EP1,262,803 (4 December 2002).

McNeil, J. R.

O'Brien, N. A.

N. A. O'Brien, M. J. Cumbo, K. D. Hendrix, R. B. Sargent, and M. K. Tilsch, 'Recent advances in thin film interference filters for telecommunications,' in SVC 2001, 44th Technical Conference Proceedings, (Society of Vacuum Coaters, New Mexico, 2001), pp. 255-2601.

G. J. Ockenfuss, N. A. O'Brien, and E. Williams, 'Ultra-low stress coating process: an enabling technology for extreme performance thin film interference filters,' in Optical Fiber Communication Conference (OFC), Postconference Digest, Vol. 70 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2002), postdeadline paper FA8.
[CrossRef]

Ockenfuss, G. J.

G. J. Ockenfuss, N. A. O'Brien, and E. Williams, 'Ultra-low stress coating process: an enabling technology for extreme performance thin film interference filters,' in Optical Fiber Communication Conference (OFC), Postconference Digest, Vol. 70 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2002), postdeadline paper FA8.
[CrossRef]

G. J. Ockenfuss and R. E. Klinger, 'Stress free thermally stabilized dielectric optical filters,' European patent EP1,262,803 (4 December 2002).

Prins, S. L.

Sargent, R. B.

N. A. O'Brien, M. J. Cumbo, K. D. Hendrix, R. B. Sargent, and M. K. Tilsch, 'Recent advances in thin film interference filters for telecommunications,' in SVC 2001, 44th Technical Conference Proceedings, (Society of Vacuum Coaters, New Mexico, 2001), pp. 255-2601.

Takahashi, H.

Tilsch, M. K.

N. A. O'Brien, M. J. Cumbo, K. D. Hendrix, R. B. Sargent, and M. K. Tilsch, 'Recent advances in thin film interference filters for telecommunications,' in SVC 2001, 44th Technical Conference Proceedings, (Society of Vacuum Coaters, New Mexico, 2001), pp. 255-2601.

Williams, E.

G. J. Ockenfuss, N. A. O'Brien, and E. Williams, 'Ultra-low stress coating process: an enabling technology for extreme performance thin film interference filters,' in Optical Fiber Communication Conference (OFC), Postconference Digest, Vol. 70 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2002), postdeadline paper FA8.
[CrossRef]

Appl. Opt. (2)

Other (3)

N. A. O'Brien, M. J. Cumbo, K. D. Hendrix, R. B. Sargent, and M. K. Tilsch, 'Recent advances in thin film interference filters for telecommunications,' in SVC 2001, 44th Technical Conference Proceedings, (Society of Vacuum Coaters, New Mexico, 2001), pp. 255-2601.

G. J. Ockenfuss, N. A. O'Brien, and E. Williams, 'Ultra-low stress coating process: an enabling technology for extreme performance thin film interference filters,' in Optical Fiber Communication Conference (OFC), Postconference Digest, Vol. 70 of OSA Trends in Optics and Photonics Series (Optical Society of America, 2002), postdeadline paper FA8.
[CrossRef]

G. J. Ockenfuss and R. E. Klinger, 'Stress free thermally stabilized dielectric optical filters,' European patent EP1,262,803 (4 December 2002).

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Figures (6)

Fig. 1
Fig. 1

Boxplots of 0.5 dB RBW by part size for 200 GHz filters.

Fig. 2
Fig. 2

FEA of the in-plane stress of a 40 µm thick coating on a 1.4 mm × 1.4 mm × 1.0 mm substrate (only of filter shown).

Fig. 3
Fig. 3

(a) Free-standing 8-skip-0 filter attached to a stainless-steel washer. The filter size is 1.4 mm × 1.4 mm . (b) Transmission measurement of an 8-skip-0 100 GHz filter (black curve); the filter specifications are the dashed lines, and the filter design is the light-gray curve.

Fig. 4
Fig. 4

Spatial distribution of the CWL measured in reflection. The filter size is 1.4 mm × 1.4 mm × 1.4 mm . The contour lines are spaced at 0.2 nm . The cylinder indicates the size of the light beam: (a) typical 100 GHz filter produced with standard process and (b) 8-skip-0 100 GHz filter fabricated with the ultra-low-stress process.

Fig. 5
Fig. 5

Spectral performance of 4-skip-0 100 GHz filters with the standard process (gray curve) and with the ultra-low-stress process (black curve). The dashed line indicates a typical specification.

Fig. 6
Fig. 6

Spectral performance of 100 GHz filters with different filter dimensions: 1.4 mm × 1.4 mm (light gray curve), 1.2 mm × 1.2 mm (gray curve) and 1.0 mm × 1.0 mm (black curve).

Tables (2)

Tables Icon

Table 1 Comparison of Some Wide Bandpass Filter Designs

Tables Icon

Table 2 Filter and Coupler Performance

Metrics