MCVD Tip: Install a Glass Bubbler to Observe Chemical Color and Level

Over the years, I have found chemical visibility to be a real advantage. In a glass bubbler, you can confirm proper chemical level, confirm a uniform bubble stream, and view the chemical color (A color change may indicate delivery system corrosion). Glass bubblers offer these additional benefits: 

  • The bubble stream can be observed and frit plugging can be detected, rather than assuming all is well.
  • POCl3 is not compatible with stainless steel for long durations. If you use this liquid and have a stainless steel gas delivery system, you may want to install a glass bubbler to create a hybrid system.
  • On rare occasions, you may want to increase the chemical temperature in the bubblers above 40 degrees C. This practice can pull metal ions from stainless steel and into your bubble stream. Clearly, this can degrade the fiber’s optical properties and should be considered when choosing an MCVD system.

 

Additional resources from the FOC team include:

 

Have questions about this FOC Tip?

Contact FOC with questions at: (800) 473-4237 / 508-992-6464 or email: FiberOpticCenter@focenter.com and we will respond ASAP.

 

Additional articles from our preform fabrication consultant include:

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About Fiber Optic Center, Inc.
Fiber Optic Center, Inc., (FOC), is an international leader in distributing fiber optic components, equipment and supplies and has been helping customers make the best cable assemblies in the world for over two decades. Several areas of specialization and expertise, in which they are the industry leader, make them the preferred choice for many of the world’s fiber professionals. In these key technology areas, FOC is "at least as technical as the manufacturer" about the products they sell. Striving to "make the business part easy," they offer outstanding and personal customer service, low or no minimum purchase order values, and from-stock delivery on industry-leading products and technology. FOC is the industry connection to the most innovative optical products, technologies and technical experts who integrate their manufacturing knowledge and vast experience into customers' worldwide operations. @FiberOpticCntr

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