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| Part NO. : | DCFBG-series |
| Datasheet : |
|
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Tappered lensed fiber
Description
It is
mainly used for the coupling of DFB, SLD laser whose facula is nearly circular
Features
Tapperd lensed
fiber is produced by finishing the fiber end face to be taper-shaped with
precise finish equipment of our company; and then optical micro-sphere lens is
produced on its cusp with special processing procedure with the purpose of
expanding optical numerical aperture and increasing its ability to absorb
light.It is characterized by high coupling efficiency, as well as convenient
and reliable use, with the coupling efficiency to SLD laser higher than 30%.
Light beam analysis photograph
Outline schematic diagram
Lens working schematic diagram
Specifications
|
Product parameters |
|
|
Fiber mode |
Single-mode /
multimode fiber |
|
Taper angle θ |
θ=30～33°(standard), θ=52～55°(standard), θ=110～120°(standard)or customer requirements(30～120°)±2° |
|
Radius of lens r |
4～20μm(standard)or customer requirements±1μm |
|
A Naked fiber length at the end |
≥0.1mm(standard), or customer requirements±0.2mm |
|
B Length of metalized part |
Customer requirements±0.5mm |
|
C Length of naked fiber at the root |
0mm(standard), or customer requirements±0.5mm |
|
D Total length of stripped fiber |
Customer requirements±0.5mm |
|
Total fiber length |
Customer requirements+0.5m |
|
Coating thickness |
3～4μm(standard)or 1～10μm(customer requirements ) |
|
Thickness of gold-coated layer |
Not less than 0.1μm |
|
Coated layer tension |
>10N （Conditions: Idealphotonics hot solder resist process） |
|
Operating Temperature |
-40～+85℃ |
|
Recommended soldering temperature |
280～300℃ |
|
Recommended soldering flux |
80%Au/20%Sn |
|
Coated membrane on the end face |
It can be coated according to customer requirements |
|
Connector type |
FC, SC or customer requirements |
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