JP2003241002A5

JP2003241002A5 -

Info

Publication number: JP2003241002A5
Application number: JP2002038592A
Authority: JP
Filing date: 2002-02-15
Publication date: 2005-08-25

Claims

A plurality of optical waveguides formed on a substrate, and a plurality of two-dimensional shapes formed on the substrate and provided at one end of the plurality of optical waveguides, respectively, for shaping signal light propagating through the optical waveguides into substantially parallel light An optical collimator having a lens,
The optical collimator characterized in that the pitch at the one end of the optical waveguide is wider than the pitch at the other end.

The optical collimator according to claim 1,
Optical fibers are connected to the other end of the optical waveguide,
The pitch of the optical waveguide gradually spreads from the same pitch as the optical fiber pitch to the same pitch as the two-dimensional lens pitch from the other end toward the one end. Collimator.

The optical collimator according to claim 1 or 2,
The two-dimensional lens is a collimating lens that shapes the signal light into substantially parallel light in a direction substantially parallel to the substrate plane,
Wherein it is arranged near the two-dimensional lens, the in substrate plane substantially perpendicular, optical collimator, characterized in that it further comprises a cylindrical lens for shaping the signal light emitted from the two-dimensional lens into a substantially parallel light.

A plurality of input-side optical waveguides formed on the input-side substrate; and signal light that is formed on the input-side substrate and provided at one end of each of the plurality of input-side optical waveguides and propagates through the input-side optical waveguide. Input-side optical transmission means having a plurality of input-side collimating lenses for shaping into substantially parallel light, deflection means for deflecting the signal light emitted from the input-side collimating lens, and the signal deflected by the deflection means An optical switch having an output side optical transmission means to which light is incident,
An optical switch, wherein a pitch at the one end of the input side optical waveguide is wider than a pitch at the other end.

The optical switch according to claim 4, wherein
The output-side optical transmission means is formed on the output-side substrate on the output-side substrate, and is provided on one end of the plurality of output-side optical waveguides. A plurality of output-side collimating lenses that are incident on any of the signal light deflected by the light source and collect the incident signal light;
The optical switch, wherein a pitch at the one end of the output-side optical waveguide is wider than a pitch at the other end.

The optical switch according to claim 5, wherein
The optical switch, wherein the input-side optical transmission means and the output-side optical transmission means are arranged so that the input-side collimating lens and the output-side collimating lens face each other.

The optical switch according to any one of claims 4 to 6,
An optical switch, further comprising a slab waveguide through which the signal light propagates between the input side optical transmission means and the output side optical transmission means.

The optical switch according to claim 5, wherein
The input side substrate and the output side substrate are the same substrate,
The optical switch, wherein the input-side collimating lens and the output-side collimating lens are oriented in the same direction.

The optical switch according to any one of claims 4 to 8,
The optical switch, wherein the deflecting unit is a deflecting element that deflects the signal light using a change in refractive index due to an electro-optic effect.

The optical switch according to any one of claims 4 to 8,
The optical switch is characterized in that the deflecting unit includes a plurality of minute mirrors disposed in the vicinity of the input-side collimating lens and the output-side collimating lens.