Difference between revisions of "Fiber-Optics Obstacle Course"

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(Permanent Materials (located at the fiber station):)
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== Permanent Materials (located at the fiber station): ==
+
== Permanent Materials (located at the fiber station): ==  
 +
[[File:Fiber_station.jpg| right|600px]]
  
 
- Bulk SMF <br>
 
- Bulk SMF <br>
 
- Fiber connectors<br>
 
- Fiber connectors<br>
- Polishing materials (polishing film, disks, fiber stripper, fiber cleaver, inspection scope)<br>
+
- Polishing materials <br>
 
- free-space-to-fiber coupler<br>
 
- free-space-to-fiber coupler<br>
 
- fiber chucks<br>
 
- fiber chucks<br>
Line 15: Line 16:
 
- 980nm pump laser<br>
 
- 980nm pump laser<br>
 
- Erbium-Doped fiber<br>
 
- Erbium-Doped fiber<br>
 +
  
 
=== Materials to borrow when necessary ===
 
=== Materials to borrow when necessary ===
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- Read the first 4 chapters of John Crisp's eBook, "Introduction to Fiber Optics". Consult remaining chapters as needed.
+
# Read the first 4 chapters of John Crisp's eBook, "Introduction to Fiber Optics". Consult remaining chapters as needed.
 
 
- Look over the APL's Fiber Optics Wiki page [[Fiber Optics]] and links therein.
 
 
 
- Consulting Thorlab's Fiber Polishing Manual [[Media:FN96A-Manual.pdf| Fiber Polishing and Connectorization]] and the (above mentioned) eBook construct a 1 meter SM FC-APC to FC-APC fiber patch cable (you will find everything you need at the fiber polishing station). [[File:Fiber_station.jpg| right|400px]]
 
 
 
- Measure power loss through your patch cable.
 
 
 
- Break your patch cable in the middle and repair it with a fusion splice (see fusion splicer manual [[Media:X77_Fusion_Splicer.pdf| Fusion Splicer Manual]] and eBook.
 
 
 
- Measure the power loss through your fusion spliced patch cable.
 
 
 
 
 
 
 
 
 
 
 
  
 +
# Look over the APL's Fiber Optics Wiki page [[Fiber Optics]] and links therein
  
 +
# Consulting Thorlab's Fiber Polishing Manual [[Media:FN96A-Manual.pdf| Fiber Polishing and Connectorization]] and the (above mentioned) eBook construct a 1 meter SM FC-APC to FC-APC fiber patch cable (you will find everything you need at the fiber polishing station). <br>
  
 +
## Measure power loss through your patch cable.<br>
  
 +
## Break your patch cable in the middle and repair it with a fusion splice (see fusion splicer manual [[Media:X77_Fusion_Splicer.pdf| Fusion Splicer Manual]] and eBook.<br>
  
 +
## Measure the power loss through your fusion spliced patch cable.<br>
  
- Break the fusion splice out of the patch cord leaving two partly-connectorized fibers.
+
## Break the fusion splice out of the patch cord leaving two partly-connectorized fibers.<br>
  
- Strip and cleave the unconnectorized end of one of the fibers and use the free-space-to-fiber coupler [[File:Fs-fiber_coupler.jpg| right|300px]] to couple a free space beam into the SM fiber (our coupler is not quite as that shown at the right).
+
## Strip and cleave the unconnectorized end of one of the fibers and use the free-space-to-fiber coupler [[File:Fs-fiber_coupler.jpg| right|300px]] to couple a free space beam into the SM fiber (our coupler is not quite as that shown at the right).<br>
  
- Use a 50/50 fiber splitter/combiner to split your fiber coupled beam into two approximately equal beams. Measure the power in each output beam.
+
## Use a 50/50 fiber splitter/combiner to split your fiber coupled beam into two approximately equal beams. Measure the power in each output beam.<br>
  
- Use a 1550nm Fiber-coupled LD and a 980 nm fiber-coupled LD and a 1550/980 WDM (wavelength division multiplexer) to combine the 980 and 1550 nm sources into a SM fiber.
+
# Use a 1550nm Fiber-coupled LD and a 980 nm fiber-coupled LD and a 1550/980 WDM (wavelength division multiplexer) to combine the 980 and 1550 nm sources into a SM fiber.
  
- Verify that a fiber isolator exhibits low power loss in one direction only.
+
# Verify that a fiber isolator exhibits low power loss in one direction only.
  
  
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- Construct an Erbium-Doped SM Fiber Ring Laser. Measure its optical power vs. pump current/power curve.
+
# Construct an Erbium-Doped SM Fiber Ring Laser. Measure its optical power vs. pump current/power curve.
 
[http://hank.uoregon.edu/experiments/edfa-cwlaser/edfa-cwlaser.html| See here for more details]
 
[http://hank.uoregon.edu/experiments/edfa-cwlaser/edfa-cwlaser.html| See here for more details]
 
[[File:Frl.png|left]]
 
[[File:Frl.png|left]]

Revision as of 15:12, 6 February 2015

  • When working with bare fibers or lasers wear appropriate safety (or laser) goggles. If you're unsure about this please consult the instructor or lab TAs.


Permanent Materials (located at the fiber station):

Fiber station.jpg

- Bulk SMF
- Fiber connectors
- Polishing materials
- free-space-to-fiber coupler
- fiber chucks
- 50/50 fiber splitter/combiner
- 90/10 fiber splitter/combiner
- 1550/980nm WDM
- 1550nm fiber isolator
- 980nm pump laser
- Erbium-Doped fiber


Materials to borrow when necessary

- Power Meter
- Fusion Splicer


Activities

  1. Read the first 4 chapters of John Crisp's eBook, "Introduction to Fiber Optics". Consult remaining chapters as needed.
  1. Look over the APL's Fiber Optics Wiki page Fiber Optics and links therein
  1. Consulting Thorlab's Fiber Polishing Manual Fiber Polishing and Connectorization and the (above mentioned) eBook construct a 1 meter SM FC-APC to FC-APC fiber patch cable (you will find everything you need at the fiber polishing station).
    1. Measure power loss through your patch cable.
    1. Break your patch cable in the middle and repair it with a fusion splice (see fusion splicer manual Fusion Splicer Manual and eBook.
    1. Measure the power loss through your fusion spliced patch cable.
    1. Break the fusion splice out of the patch cord leaving two partly-connectorized fibers.
    1. Strip and cleave the unconnectorized end of one of the fibers and use the free-space-to-fiber coupler
      Fs-fiber coupler.jpg
      to couple a free space beam into the SM fiber (our coupler is not quite as that shown at the right).
    1. Use a 50/50 fiber splitter/combiner to split your fiber coupled beam into two approximately equal beams. Measure the power in each output beam.
  1. Use a 1550nm Fiber-coupled LD and a 980 nm fiber-coupled LD and a 1550/980 WDM (wavelength division multiplexer) to combine the 980 and 1550 nm sources into a SM fiber.
  1. Verify that a fiber isolator exhibits low power loss in one direction only.




  1. Construct an Erbium-Doped SM Fiber Ring Laser. Measure its optical power vs. pump current/power curve.

See here for more details

Frl.png