Share Email Print

Optical Engineering

Single-mode fiber-compatible plastic-molded surface-contact receptacles
Author(s): Yoshihisa Warashina; Takashi Iida; Tsuyoshi Ikeya; Mikio Kyomasu
Format Member Price Non-Member Price
PDF $20.00 $25.00

Paper Abstract

A single-mode fiber-compatible surface-contact (SC) receptacle is fabricated by insert-molding technology with a zirconia sleeve in the mold patterns. The zirconia sleeve, lens holder, and a plastic case consist of the same mold pattern for precise coincidence of the optical axes. Almost all of the case structures are fundamentally cylindrical to disable temperature modifications due to mechanical expansion or deformation. For the same reason, the grade of liquid crystalline polymer is selected carefully. Furthermore, the roof mirror array lens used in the facsimile machine is selected as a graded-index (GRIN) rod lens to reduce costs. The fabrication results show that in this structure, the mechanical removal strength in the zirconia sleeve attained over 50 kg f, and mechanical tolerance is also maintained after more than 1000 plug coupling tests. The fabrication methods are successively suitable for mass production and contributed to the cost effective SC receptacle. This receptacle is compatible not only with multimode fiber but also with single-mode fiber. The total coupling loss in this receptacle equipped with a 1.3-µm multi-quantum-well laser diode is —6 dB with the singlemode fiber. The contribution due to the GRIN rod lens is —5.5 dB and the excess coupling loss due to the assembly is within —0.5 dB.

Paper Details

Date Published: 1 November 1996
PDF: 7 pages
Opt. Eng. 35(11) doi: 10.1117/1.601050
Published in: Optical Engineering Volume 35, Issue 11
Show Author Affiliations
Yoshihisa Warashina, Hamamatsu Photonics KK (Japan)
Takashi Iida, Hamamatsu Photonics KK (Japan)
Tsuyoshi Ikeya, Hamamatsu Photonics KK (Japan)
Mikio Kyomasu, Hamamatsu Photonics KK (Japan)

© SPIE. Terms of Use
Back to Top