Contact Us

Shaoxing ZKTel Equipment Co.,Ltd

Address:The Intersection of Sanjiang Road and Paozhong Road, Paojiang Industrial Zone, Shaoxing City, Zhejiang Prov.,China 312071

Tel: +86-575-88035326

Mobile: +8613626888520

Fax: +86-575-88039030


What Means TOSA From ZKTEL

- Jun 22, 2018 -

There is a news frow ZKTEL. ZKTEL is a company which produce 5G products, which including 10G AOC SFP+ production; 40G AOC QSFP+ production; SFP28 SR/LR production; SFP+ SR production; QSFP28 SR4; QSFP28 LR4 and so on. The prices of ZKTEL products is very competitive. Welcome to visit our websites, connect with our customer serviece, we will provide yours best service!

Abbreviation for Transmitter Optical Subassembly. Here's a brief introduction to the relevant knowledge:

The optical transmission module is divided into a single-mode optical transmission module and a multi-mode optical transmission module. The overall product architecture includes two major parts: an optical subassembly (OSA) and an electrical subassembly (ESA). Firstly, the epitaxial portion is made of gallium arsenide (GaAs), indium phosphide (InP), indium gallium arsenide (InGaAs), etc., as a light emitting and light detecting material, and a metal-organic chemical vapor deposition (MOCVD) method is used. ) Etc. Ways to make an epitaxial wafer. In the chip process, the wafers are made into laser diodes. Then, the laser diode, filter, metal lid and other components are packaged into a TO can (Transmitter Outline can), and then the TO can be packaged with a ceramic sleeve and the like into an optical sub-module (OSA). Finally, with the electronic sub-module (ESA), the electronic sub-module includes two transmitting and receiving driver ICs for driving the laser diode and the photo-detecting diode, and the optical sub-modules are combined to form an optical transmission module.

The optical submodule can be further subdivided into a Transmitter Optical Subassembly (TOSA) and a Receiver Optical Subassembly (ROSA).

The main performance indicators of TOSA include optical power (Po) and center wavelength (λc). Optical power commonly used units mW (or uW), such as Po = 0.5mW; unit of central wavelength nm, common wavelengths such as λc = 850nm, λc = 1310nm, λc = 1490nm, λc = 1550nm and so on.

Related Industry Knowledge

Related Products

  • 10G XFP 300m MM LC
  • 100Gb/s QSFP28 CLR4
  • GPON Stick SFP ONU
  • SFF 2*5 EPON ONU
  • 210Mbps BiDi SM