In the field of optical fiber communication, the used wavelength is in the near infrared region, and the two commonly used communication Windows are 980nm and 1550nm. If you want to use the light source of these two bands at the same time for optical information transmission, there is a product that can fix it. It is an integrated optical fiber device IWDM from ORTE Photonics.
This is how an IWDM component looks like and composed of
The IWDM is divided into forward and backward optical paths as shown in the following diagram. We can make an IWDM based on site requirements.
In the practical situation, the light source at the signal end comes in from the common end and separates the light of two different bands, namely 980nm band and 1550nm band, from the pump and transmission end for optical communication. If used in the manufacture of EDFA, the device which plays the role of wavelength division multiplexing and optical isolation, the pump light can be incident into erbium-doped fiber and play the role of optical amplification. Due to the isolation core inside the device of the product, the interference of reflected light to the light signal of the light source can be reduced, and the product has the advantage of high isolation degree.
At present, the product size of our company can be as low as 2.2*25mm, which can reduce the size of the whole EDFA module. The product has the characteristics of low loss, low polarization, high isolation degree and small size. The related performance parameters can meet the following requirements.
Welcome to learn more about our ORTE Photonics IWDM through our website: https://www.orte-photonics88.com/product/9801550nm-1x2-high-isolator-hybrid-iwdm-for-edfa