This product is a 4-channel LWDM Mux multiplexer module, employing a 1×4 structure design, with operating wavelengths of 1295.56 nm, 1300.05 nm, 1304.58 nm, and 1309.14 nm.

2. Core Product Features

Parameter	Units	Value
Module	/	1x4
Operating Wavelength	nm	1295.56	1300.05	1304.58	1309.14
Insertion Loss	dB	0.49	0.81	0.99	1.09
Isoation	dB	≥30
Directivity	dB	≥50
Return Loss	dB	≥45
PDL	dB	≤0.15
Connectors	/	FC/UPC
Fiber Type	/	Corning SM-28e,0.9mm,1.0m
Power Handing(mW)	mW	300
Operating Temperature	°C	-5 to +70
Storage Temperature	°C	-40 to +85
Dimensions (LxWxH)	mm	120x80x18
* testing data include connectors

* testing data include connectors

4-Channel LWDM Multiplexing Design
Supports four wavelength channels: 1295.56 nm, 1300.05 nm, 1304.58 nm, and 1309.14 nm, enabling multiple O-band signal multiplexing transmission.
Low Insertion Loss Performance
Measured insertion losses for each channel are 0.59 dB, 0.74 dB, 0.98 dB, and 0.97 dB, respectively, contributing to reduced system link loss.
Good Isolation and Directivity
Channel isolation ≥30 dB and directivity ≥50 dB, effectively reducing channel crosstalk and ensuring stable transmission of multi-wavelength signals.
Stable Optical Performance: Return loss RL ≥ 45 dB, polarization dependent loss PDL ≤ 0.15 dB, maximum optical power carrying capacity 300 mW, suitable for stable and reliable optical communication link applications.
Engineering Packaging and Connection Configuration: Utilizes a 120×80×18 mm box-type package, equipped with FC/UPC connectors, Corning SMF-28e fiber, 0.9 mm loose tube, 1.0 m fiber length, facilitating equipment integration and field installation.

3. Applications

O-band LWDM optical communication systems;
4-channel optical signal multiplexing transmission systems;
High-speed optical interconnects for data centers;
100G/400G optical module and subsystem integration;
Metropolitan area networks, access networks, and short-distance optical transmission networks;
Integration of optical transmission equipment, test platforms, and passive wavelength division multiplexing devices.

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