Description

DWDM（Dense Wavelength Division Multiplexing）: Usually, Specifies the wavelengths used in C+L band are from 1525 nm to 1625 nm, with a channel spacing of 50GHz(0.4nm)、100GHz(0.8nm), and multiplexed wavelength number: 40λ, 80λ, 96λ etc. DWDM passive modules

DWDM passive device manufacturing process

Solution

In the field of DWDM optical passive device production, expensive test instruments account for a large part of the test cost, in which ITU laser source(C+L Band tunable), high speed optical power meter(HOPM) is the most expensive part of the instrument, make full use of these instrument, multi-station shared resources is the main method to effectively reduce the total test cost.

Fiber core spacing inspection Parameter：D

G-lens dimming

DWDM device reflection port(R port) test

Collimation+ reflection port(R port) test

DWDM device passage port(P port) test

Collimation+ passage port(P port) test

DWDM device H/T,L/T Test, Highbake Test, Product Test diagram

DWDM device performance test—PDL test（optional）

PDL test --light source、Polarization controller、OPM(polarization insensitive)