Optical module
An optical module according to the present invention includes: an optical device including an optical waveguide chip; an optical fiber block bonded to and arranged on an end face of the optical waveguide chip; an optical fiber that has one end optically connected to the optical waveguide chip via the optical fiber block; an optical fiber holding mechanism for holding the other end of the optical fiber; and an optical fiber carrier. The optical fiber is arranged while being curved from the optical fiber carrier toward the optical fiber block in a U-shape, and a wall structure is formed on the surface of the carrier while being adjacent to the optical fiber at, for example, a position on the outer side of the U-shaped curve of the optical fiber position at which the wall structure reduces a normal force of the optical fiber.
1. An optical module comprising:
a carrier;
an optical waveguide chip mounted on the carrier;
an optical fiber connected to the optical waveguide chip via an optical fiber block, the optical fiber being arranged on the carrier so as to have a curved portion;
a wall structure disposed on the carrier in which the wall structure is in contact with the optical fiber;
a fiber holding structure that is provided on the carrier and holds and fixes an end of the optical fiber which is opposite to the end connected to the optical waveguide chip;
wherein the wall structure is located only on one optical fiber side of two optical fibers that are divided at the farthest point from the optical waveguide chip in the curved portion of the optical fiber, the end of the optical fiber being connected to the optical waveguide chip on the one optical fiber side, and the wall structure is disposed on a position at which a restoring force of the optical fiber applied to an optical connection portion of the optical waveguide chip and the optical fiber block is reduced by a reaction force applied from the wall structure to the optical fiber.
2. The optical module according to claim 1 , wherein the wall structure and the optical fiber are not fixed to the wall structure with an adhesive or a tape clip.
3. The optical module according to claim 1 , wherein the wall structure is arranged at a position at which the optical fiber comes into contact with the wall structure, the position being located in a portion of the curved portion of the optical fiber that is the closest to the optical fiber block, or a portion of the optical fiber between the curved portion and the optical fiber block.
4. The optical module according to claim 1 , wherein the wall structure is divided into a plurality of parts.
5. The optical module according to claim 1 , wherein the wall structure is formed on a lid provided over the optical waveguide chip.
6. The optical module according to claim 1 , wherein the wall structure is formed on a substrate on which the optical waveguide chip is mounted.
7. The optical module according to claim 1 , wherein the wall structure is formed on a carrier for holding the optical fiber, the carrier being arranged above the optical waveguide chip.
8. The optical module according to claim 1 , wherein the wall structure is formed on an electronic substrate on which the optical waveguide chip is mounted.