Nippon Sheet Glass Company, Limited

Zhu Xiaofan

Yasuji Sasaki

Yoshiro Sato

In an optical fiber-lens array, the optical axes of the gradient index rod lens and of the optical fiber are aligned easily with high accuracy. The optical fiber-lens array includes a first substrate having a gradient index rod lens accommodated in V-shaped grooves for rod lenses formed in parallel at prescribed pitches, and a second substrate having optical fibers accommodated in V-shaped grooves for optical fibers formed at the same array pitches with said V-shaped grooves for rod lenses. The first substrate and the second substrate are connected by guide pins placed on the common positioning guide grooves formed on the first substrate and the second substrate with the respective end surfaces of the gradient index rod lenses and the respective end surfaces of the corresponding optical fibers faced toward each other.

Optical fiber-lens array

A miniaturized and easy-assembling optical circuit module includes optical signal emitting means for emitting an optical signal, a sleeve having an end surface, an optical device having a reflection surface, which contacts the end surface, and a lens located between the optical signal emitting means and the optical device. The lens converts the optical signal to a collimated optical signal, which is emitted to the optical device, reflected by the reflection surface and then converged by the lens to generate a converged light signal. The module further includes optical signal receiving means for receiving the converged light signal. The lens is fixed in the sleeve such that the focal point of the lens is aligned with the reflection surface. The optical signal emitting means and the optical signal receiving means are fixed in the sleeve such that the converged light signal is coupled into the optical signal receiving means.

Growing community of inventors

Osaka, Japan

Zhu Xiaofan