Optical module
View Patent ↗On a mounting substrate 101 , an LD element 102 and a wavelength converter element 103 are mounted as optical elements. An end of an optical fiber 105 is fixed, at a given length, in a fiber anchoring groove 301 of a sub-substrate 104 . The sub-substrate 104 is mounted to the mounting substrate 101 with the surface supporting the optical fiber 105 opposing thereto, and the wavelength converter element 103 and the optical fiber 105 being coupled. By mounting of the sub-substrate 104 to the mounting substrate 101 , the coupling position of the output end of the wavelength converter element 103 and the input end of the optical fiber 105 is provided an internal position that is a given distance from the end of mounting substrate 101.
1. An optical module comprising:
a mounting substrate,
an optical element mounted on the mounting substrate,
an optical fiber, and
a support member that supports the optical fiber, where a surface of the support member supports the optical fiber, opposes and is mounted to the mounting substrate, optically coupling the optical element and the optical fiber, wherein
the support member has a fiber anchoring groove of a given length and fixing an end of the optical fiber,
the fiber anchoring groove has a first groove of a depth for preventing contact of the optical fiber with the mounting substrate and a second groove for anchoring the optical fiber; and
a coupling position where an output end of the optical element and an input end of the optical fiber are optically coupled by mounting of the support member to the mounting substrate is provided at an internal position of a given distance from an end of the mounting substrate,
wherein the first groove has a width that is greater than or equal to a diameter of cladding of the optical fiber and the second groove has a depth on an order of half of the diameter of the cladding of the optical fiber, in the first grove.
2. The optical module according to claim 1 , wherein the first groove is formed by:
a groove that corresponds to a diameter of a coating of the optical fiber, and
a groove that corresponds to a diameter of a functional region of the optical fiber.
3. The optical module according to claim 1 , wherein
the support member and the optical element are bonded to the mounting substrate by surface activated bonding.
4. The optical module according to claim 1 , wherein
alignment marks for aligning the support member and the mounting substrate are provided on the surface of the support member, supporting the optical fiber and the mounting substrate.
5. The optical module according to claim 1 , wherein
the optical element includes:
a laser diode that outputs light of a given wavelength, and
a wavelength converter element that wavelength converts the light of the given wavelength output from the laser diode.
6. The optical module according to claim 5 , wherein
an optical waveguide that guides light output from the wavelength converter element to an input end of the optical fiber is included as the optical element.
7. An optical module comprising:
a mounting substrate,
an optical element mounted on the mounting substrate,
an optical fiber, and
a support member that supports the optical fiber, where a surface of the support member supports the optical fiber, opposes and is mounted to the mounting substrate, optically coupling the optical element and the optical fiber, wherein
the support member has a fiber anchoring groove of a given length and fixing an end of the optical fiber,
the fiber anchoring groove has a first groove of a depth for preventing contact of the optical fiber with the mounting substrate and a second groove for anchoring the optical fiber; and
a coupling position where an output end of the optical element and an input end of the optical fiber are optically coupled by mounting of the support member to the mounting substrate is provided at an internal position of a given distance from an end of the mounting substrate,
wherein the first groove is formed by:
a groove that corresponds to a diameter of a coating of the optical fiber, and
a groove that corresponds to a diameter of a functional region of the optical fiber.