U8154 Lan WDM light source

Basic concepts of Lan WDM light source:

1. From the wavelength: the wavelength is defined as L1：1271/1291/1311/1331 nm  and L2：1295.56/1300.05/1304.58/1309.14 nm。Other wavelength combinations are named L3，L4，。。。

2. From the packaging form of light emitting devices, it is divided into two packages: the first group L1, which has coaxial device and butterfly device package, and the second group L2, which is generally a butterfly device package. We define the coaxial packaging device as:U8154-T (TO), and the butterfly packaging device is named: U8154-B (Butterfly).

3. From the four wavelength output forms, we divide it into four channels of output: four wavelengths and four-way output, and four-wavelength four-way output; we define four-wavelength four-way output as U8154, and four-wavelength four-way output as U8151；

4. From the power output form: general users need four wavelengths of equal power output, while some users need four wavelengths of power adjustable output per channel(adjustable range 30dB), We define equal power output as: U8154-P, and the power adjustable output is U8154-V;

In summary, the specifications of different product models are distinguished in table form as follows

Specification

Remark：Four-channel equal power output generally uses a 1U chassis, and four-in-one and power adjustable output generally uses a 2U chassis.