JPS63112332U - - Google Patents

Info

Publication number

JPS63112332U

JPS63112332U JP373787U JP373787U JPS63112332U JP S63112332 U JPS63112332 U JP S63112332U JP 373787 U JP373787 U JP 373787U JP 373787 U JP373787 U JP 373787U JP S63112332 U JPS63112332 U JP S63112332U

Authority

JP

Japan

Prior art keywords

optical waveguide

core tube

furnace core

heating element

measured

Prior art date

1987-01-14

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000010438 heat treatment Methods 0.000 claims description 8
• 230000003287 optical effect Effects 0.000 claims description 6
• 238000006243 chemical reaction Methods 0.000 claims description 2
• 239000004065 semiconductor Substances 0.000 description 1
• 238000002791 soaking Methods 0.000 description 1