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Applied Optics

Applied Optics


  • Vol. 37, Iss. 14 — May. 10, 1998
  • pp: 2935–2943

Relay lens-free birefringence-customized stackable beam-steering modules for optical interconnects

Liren Liu, Ting Wang, and Yao Li  »View Author Affiliations

Applied Optics, Vol. 37, Issue 14, pp. 2935-2943 (1998)

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A previously suggested birefringence-customized modular optical interconnect technique is extended for lens-free relay operation. Various lens-free relay imaging models are developed. We claim that the lens-free relay system is important in simplifying an optical interconnect system whenever the imaging conditions permit. To verify the validity of various proposed concepts, we experimentally implemented some 8 × 8 optical permutation modules. High-power efficiency and low channel cross talk were experimentally observed. In general, the larger the channel spacing, the less the cross talk. A quantitative cross-talk measurement of the lens-free relay system shows that, for a fixed channel width of 0.5 mm and channel spacings of 0.5, 1, and 2 mm, a less than -20-dB cross-talk performance can be guaranteed for lens-free relay distances of 40, 280, and 430 mm, respectively.

© 1998 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(200.4650) Optics in computing : Optical interconnects
(260.1440) Physical optics : Birefringence
(260.5430) Physical optics : Polarization

Original Manuscript: July 14, 1997
Revised Manuscript: November 20, 1997
Published: May 10, 1998

Liren Liu, Ting Wang, and Yao Li, "Relay lens-free birefringence-customized stackable beam-steering modules for optical interconnects," Appl. Opt. 37, 2935-2943 (1998)

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