Title:
MANUFACTURING DEVICE FOR LASER LIGHT ATTENUATOR, LASER LIGHT ATTENUATOR MANUFACTURED BY THIS MANUFACTURING DEVICE, AND MANUFACTURING METHOD FOR THIS LASER LIGHT ATTENUATOR
Document Type and Number:
WIPO Patent Application WO/2018/139486
Kind Code:
A1
Abstract:
A manufacturing device for manufacturing a laser light attenuation device is configured from: a holding device (L-shaped holding parts HA, HB) which performs initial setting of a distance between opposing surfaces of two prisms A, B by pressing the opposing surfaces against with each other directly or with a spacer having a predetermined thickness therebetween; an adjustment mechanism (actuator 4) which, with the state of the initial setting as a reference, adjusts the ratio of a light output emitted from ether of the prisms A, B to a light output incident on the prism A, by generating and coupling near-field light at the opposiing surfaces of the prisms A, B; and an attenuation measurement system which measures the ratio between the light outputs. Consequently, an attenuation-variable light attenuator with excellent durability and practical utility can be implemented at low cost.
Inventors:
NUMATA TAKAYUKI (JP)
Application Number:
PCT/JP2018/002122
Publication Date:
August 02, 2018
Filing Date:
January 24, 2018
Export Citation:
Assignee:
AIST (JP)
International Classes:
G02B26/02; G02B5/04; H01S3/10
Domestic Patent References:
| WO2017209277A1 | 2017-12-07 |
Foreign References:
| JPH04331910A | 1992-11-19 | |||
| JP2006074035A | 2006-03-16 | |||
| JP2009192706A | 2009-08-27 | |||
| JP2012215656A | 2012-11-08 | |||
| JPH09101466A | 1997-04-15 | |||
| JPH0933339A | 1997-02-07 |
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