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Affecting the performance index of WDM wavelength division multiplexer

The working band of WDM devices, such as 1550 wavelength, distinguishes three bands: S-band (short-wavelength band 1460-1528nm), C-band (conventional band 1530-1565nm), L-band (long-wavelength band 1565-1625nm).

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2022

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10

Orte Communications Inaugural Football Rivalry

On the afternoon of September 29, 2022, in such a season full of harvest, with the whistle of the referee, Orte Communication's first football match kicked off in the company's football stadium.

30

2022

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09

Introduction to Coarse Wavelength Division Multiplexer Application

The Coarse Wavelength Division Multiplexer (CWDM) is aimed at the access layer of the metropolitan area network.

30

2022

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09

Employee birthday parties in September & October, Orte grows with you

On September 26, the company held a collective birthday party for management and technical personnel whose birthdays are in September and October in the employee club. There will be lots of laughter throughout the birthday, and the content of the activities is also rich and colorful. Surprises come one after another, and everyone's face is filled with joy.

28

2022

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09

Introduction of Mini Optical Fiber Mixer

In the field of optical fiber communication, the wavelength used is in the near-infrared region, and the two commonly used communication windows are 980nm and 1550nm. If you want to use light sources in these two bands for optical information transmission at the same time, there is a product that can do it. This product is an integrated optical fiber device IWDM.

20

2022

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08

EDFA equalization technology - GFF introduction

EDFA is the core functional device in the optical transmission system, which has the advantages of high gain, large bandwidth, low noise, gain characteristics insensitive to optical polarization state, transparent to data rate and format, and negligible channel crosstalk in multi-channel systems. . The combination of DWDM and EDFA can not only increase the capacity of the system, but also has high flexibility and economy. However, due to the dense multiplexing of channel wavelengths and the uniform broadening characteristics of EDFA, there is fierce competition between different channels, and the gain and spectral line shape of EDFA need to be kept stable, so the problem of EDFA gain control and flatness is introduced. At present, there are mainly technical means to achieve EDFA gain flatness, such as thin-film filtering, low-light sinusoidal filtering, and fiber grating filtering. Optical gain flattening filter GFF is based on mature thin-film filtering technology, which is used in EDFA to compensate the uneven gain amplification under different DWDM channels. Figure 1 shows the working principle of the GFF diaphragm.

20

2022

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08

Orte Club Activity Day Briefing

With the breeze, the employee club activity day in September arrived as scheduled. On September 21, 2022, it was successfully carried out under the organization of the Youth League Committee and the Administration Department. Employees actively participated in the activities after get off work, and the activities were enthusiastic and exciting.

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2022

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08

ORTE launched a miniaturized, highly integrated, multi-output ASE light source

The ASE light source is the core device in the high-precision fiber optic gyroscope. The latest ASE light source developed by ORTE is shown on the right, and has the following characteristics:

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2022

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