Passive Components


The Basic Fiber Optic Adapter types are SC / FC / ST / LC. Adapter also also classified based on Ports – Simplex, Duplex and based on Fiber – Single mode and Multi-mode.


Fixed fiber optic attenuator, also called fixed plug type or fixed build-out fiber attenuator, is used in fiber optic communications to reduce the optical fiber power by a certain level. Typical attenuation values are between 1 and 30 dB. Usually, it has a male plug connector at one side to allow fiber attenuator to be plugged directly into receiver equipment or adapters in patch panel, and has female type fiber optic adapter at the other side to Fllow the patch cords to plug in.

Pigtail / Patch Cord

Fiber Optic Pigtails/Patch chord has seven types including E2000, LC, SC, ST, FC, MU and MTRJ. Secondly classified by fibers, fiber optic pigtails has two types as single-mode and multimode. and third based on the type of fiber, Simplex and Duplex

We offer custom made Pigtails/Patch chord based on required length, Simplex and Duplex and also based on connectors required.

FBT Splitter

Fused Biconical Taper (FBT) Splitter is one of the most common splitter. As this technology has been developed over time, the quality is very good and they can be deployed in a cost-effective manner, FBT Splitter are widely accepted and used in Passive Networks.

PLC Splitter

PLC splitter, also called Planar Waveguide Circuit splitter, is a  passive optical device with many input and output terminals, especially applicable to PON (EPON, GPON, BPON, FTTX, etc.) to connect the MDF (main distribution frame) and the terminal equipment and to branch the optical signal.

PLC splitter provides a low-cost light distribution solution with high stability and reliability. PLC splitters can offer a splitting ratio of up to 1×64, which is generally higher than the splits of FBT splitter that another common type of optical splitter.

Fiber Optic Couplers

Fiber Optic Couplers are used to split the input signals into two or more outputs, they are called splitters in this case.  On the other hand, some types of couplers can be used to combine two or more inputs into one single output, they are called combiners in this case


The CWDM is a passive MUX/DEMUX unit, which allows to combine fiber links into one, to simplify and reduce the cost of long distance fiber installations. At the other location, the combined line is split back up again, so that instead of eight long fiber lines, you would only need one. The Coarse Wavelength-Division Multiplexing (CWDM) technology offers a solution which will increase capacity of existing fiber infrastructure by enabling multiple channels/wavelengths over the same fiber cabling and will reduce costs for a new fiber optic deployment.

Optical Isolator

An optical isolator is a device that only allows unidirectional transmission of the optical signal. It is often used in optical systems to avoid unwanted optical reflections.

Rohan Educational Solutions offers wide selection of narrowband and broadband free-space optical isolators  that operate in spectral ranges from 365 nm to 4550 nm, including high-power options, as well as fiber isolators designed for wavelength ranges from 650 to 2010 nm for polarization-independent versions and 770 nm to 2010 nm for polarization-dependent versions

Variable Optical Attenuator

The variable attenuator is a kind of fiber optic attenuator that supports continuous adjustment of attenuation value between 0.6dB and 60dB. It employs the principle of light shading between the two collimators to control the attenuation value by a knob that can be manually rotated. This range of variable optical attenuator offers adjustment accuracy up to 0.1dB


Fiber Optic Circulator

The 3 or 4 port Fiber optic Circulator is a compact, high performance light wave component that transmits the incoming signal from port 1 to port 2, and another incoming signal from port 2 to port 3 simultaneously. The component provides high isolation, low insertion loss, low PDL, low PMD and excellent environmental stability. It is widely used in combination with fiber gratings and other reflective components in DWDM systems, high speed systems and bi-direction communication systems.

Fiber Bragg Gratings

A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others.

Rohan Educational Solutions offers customized Fiber Bragg Gratings with required Central Frequency based on the requirement