Abstract

This paper describes improved design criteria for a highly stable angled physical contact (APC) connector with a slanted angle of 12 for a dispersion shifted optical fiber, which is derived from the theoretical considerations based on experiments. A shift of the vertex point of the convex ferrule endface from the optical fiber axis is minimized, so that compatibility among APC connectors can be established by using a new type of stepped-ferrule developed by the author. When rotation angle between the mating ferrules was less than 4 in a circular direction, the insertion losses for the improved APC connectors consisting of stepped-ferrules were 0.23 \pm0.45 dB, while the insertion losses for the conventional APC connectors consisting of tapered-ferrules measured 0.49 \pm0.89 dB. It can be confirmed that slanted angle of the convex ferrule endface is required to be 12 to obtain a backreflection of less than {-}60 dB for the dispersion shifted optical fiber at the wavelength of 1.550 \mum.

[IEEE ]

Low-loss lens connector for single-mode fibers

S. Masuda and T. Iwama
Appl. Opt. 21(19) 3475-3483 (1982)

Simple-structure low-loss multi-core fiber LC connector using an align-by-contact method

Tetsu Morishima, Ken Manabe, Shuhei Toyokawa, Tetsuya Nakanishi, Tomomi Sano, and Tetsuya Hayashi
Opt. Express 29(6) 9157-9164 (2021)

High-precision measurement of a fiber connector end face by use of a Mirau interferometer

Zongtao Ge and Fumio Kobayashi
Appl. Opt. 45(23) 5832-5839 (2006)

Double eccentric connectors for optical fibers

Haruhiko Tsuchiya, Hiroshi Nakagome, Nobuo Shimizu, and Seiji Ohara
Appl. Opt. 16(5) 1323-1331 (1977)

Connection mechanism of physical-contact optical fiber connectors with spherical convex polished ends

Toshihiro Shintaku, Ryo Nagase, and Etsuji Sugita
Appl. Opt. 30(36) 5260-5265 (1991)