Title:
光ファイバおよびその製造方法
Document Type and Number:
Japanese Patent JP4807476
Kind Code:
B1
Abstract:
This optical fiber (1A) is provided with an incident end to which light is incident and an emitting end from which light is emitted, and also provided with an aperture formed by the irradiating the core (4) at or near the emitting end with an ultrashort pulsed laser having a pulse width of 10 -15 to 10 -11 seconds. This aperture is configured from a light scattering region formed by inducing damage change in a portion of the aforementioned core through irradiation with the ultrashort pulsed laser, a light absorption region formed by inducing blackening in a portion of the aforementioned core through irradiation with the ultrashort pulsed laser, or a volume diffractive optical element formed by inducing a refractive index change in a portion of the aforementioned core through irradiation with the ultrashort pulsed laser. The beam control properties of the light emitted from the emitting end are improved by means of adding this aperture function to the aforementioned optical fiber.
Inventors:
Satoshi Hirono
Naoto Inoue
Ikoma Manabu
Kiyohiko Gondo
Takeshi Miyata
Kazunari Komai
Naoto Inoue
Ikoma Manabu
Kiyohiko Gondo
Takeshi Miyata
Kazunari Komai
Application Number:
JP2011056832A
Publication Date:
November 02, 2011
Filing Date:
March 15, 2011
Export Citation:
Assignee:
OMRON Corporation
International Classes:
G02B6/32; G02B6/02
Domestic Patent References:
| JP2004138720A | ||||
| JP2002182045A | ||||
| JP6174969A | ||||
| JP2006510057A |
Attorney, Agent or Firm:
Fukami patent office