I need to a single mode 1550 optical circulator at my lab. I have a varied supply of components, but no circulator. Any idea how I can make one myself? Perhaps using coupler and isolator?



  • $\begingroup$ This belongs on electronics.stackexchange.com $\endgroup$ – Brionius Jan 20 '15 at 17:18
  • $\begingroup$ You would need a minimum of 2 isolators and will also incur $\geq 3\,$dB loss. $\endgroup$ – jayann Jan 20 '15 at 17:47
  • 1
    $\begingroup$ @Brionius It's really not electronics: it's *photonics", but yeah it's an engineering question. To answer the question: read up on how a circulator works, then build a collection of isolators and splitters which match the guts of a circulator. $\endgroup$ – Carl Witthoft Jan 20 '15 at 20:39

Thanks for the feedback. Although I will lose about 4dB using a splitter and isolator, I will use that setup as it fits my needs nicely.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.