Abstract

We present a new component for optical connector applications, a single piece of photochemically machinable glass (Corning Fotoform) that is etched to produce thin pillars (~55-μm diameter, 700 μm long) extending from both sides of a thin (170-μm-thick) supporting plane. Thus a two-dimensional optical fiber array is formed without any assembly. We measure a −2.5-dB insertion loss and less than −30-dB cross talk using a laser (approximately 3° focusing angle) and a −7.8-dB insertion loss and −18-dB cross talk using a collimated lamp (approximately 30° focusing angle). On tilting the array the outgoing beam is deflected, which indicates strong guiding.

© 1992 Optical Society of America

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References

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  1. See, for example, J. W. Goodman, in Proceedings of Topical Meeting on Photonic Switching (Optical Society of America, Washington, D.C., 1989), p. 164.
  2. See, for example, H. S. Hinton, in Proceedings of Topical Meeting on Photonic Switching (Optical Society of America, Washington, D.C., 1989), p. 184.
  3. R. K. Whitney, in Proceedings of the National Electronic Packaging and Production Conference, NEPCON WEST ’86 (Cahners Exposition Group, Des Plaines, Ill., 1986), p. 495.
  4. J. L. Slechta, Fotoform Products, Materials Department, Corning, Inc., Corning, New York (personal communication, 1991).

Goodman, J. W.

See, for example, J. W. Goodman, in Proceedings of Topical Meeting on Photonic Switching (Optical Society of America, Washington, D.C., 1989), p. 164.

Hinton, H. S.

See, for example, H. S. Hinton, in Proceedings of Topical Meeting on Photonic Switching (Optical Society of America, Washington, D.C., 1989), p. 184.

Slechta, J. L.

J. L. Slechta, Fotoform Products, Materials Department, Corning, Inc., Corning, New York (personal communication, 1991).

Whitney, R. K.

R. K. Whitney, in Proceedings of the National Electronic Packaging and Production Conference, NEPCON WEST ’86 (Cahners Exposition Group, Des Plaines, Ill., 1986), p. 495.

Other

See, for example, J. W. Goodman, in Proceedings of Topical Meeting on Photonic Switching (Optical Society of America, Washington, D.C., 1989), p. 164.

See, for example, H. S. Hinton, in Proceedings of Topical Meeting on Photonic Switching (Optical Society of America, Washington, D.C., 1989), p. 184.

R. K. Whitney, in Proceedings of the National Electronic Packaging and Production Conference, NEPCON WEST ’86 (Cahners Exposition Group, Des Plaines, Ill., 1986), p. 495.

J. L. Slechta, Fotoform Products, Materials Department, Corning, Inc., Corning, New York (personal communication, 1991).

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Figures (3)

Fig. 1
Fig. 1

Photograph of the MOFSA. The center-to-center fiber spacing in the array is 400 μm. The thickness of the central supporting plane is 170 μm. The tip diameters are 65 and 50 μm on opposite sides, resulting from the (correctable) process asymmetry discussed in the text. The total tip-to-tip fiber length is 1.6 mm.

Fig. 2
Fig. 2

MOFSA with 35-μm tip diameters (400-μm center-to-center spacing).

Fig. 3
Fig. 3

MOFSA of Fig. 1 with a He–Ne laser focused onto the tip at an angle away from normal. The outgoing beam is deflected and propagates along the axis of the fiber, indicating that the beam has coupled into the fundamental mode of the fiber. Several weaker outgoing beams at higher angles can be seen, corresponding to higher modes.

Tables (1)

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Table 1 Insertion Loss and Cross Talk for the Array Shown in Fig. 1

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