digital-brain/content/zettels/optical_fibers.md

+++
title = "Optical Fibers"
author = ["Dehaeze Thomas"]
draft = false
+++

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## Connectors {#connectors}

<a id="figure--fig:optical-fibers-sc"></a>

{{< figure src="/ox-hugo/optical_fibers_sc.png" caption="<span class=\"figure-number\">Figure 1: </span>SC Connector (used for instance with Attocube)" >}}

<a id="figure--fig:optical-fibers-fc"></a>

{{< figure src="/ox-hugo/optical_fibers_fc.png" caption="<span class=\"figure-number\">Figure 2: </span>FC connector" >}}

PC connector is used with Fabry-Perot interferometers when we wish to have some reflection at the end of the fiber.
Otherwise, APC connectors are used.

<a id="figure--fig:optical-connector-PC-APC"></a>

{{< figure src="/ox-hugo/optical_connector_PC_APC.png" caption="<span class=\"figure-number\">Figure 3: </span>PC (usually black) and APC (usually green) connectors" >}}


## Multi-mode and Single-mode fibers {#multi-mode-and-single-mode-fibers}

If laser is used (fiber interferometer for instance), a single-mode fiber should be used and the wavelength of the mode should be matched with the wavelength of the laser.


## Bibliography {#bibliography}

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