WDM

Fibconet-Professional China WDM Manufacturer

What is WDM

Filter WDM modules are extensively used in optical amplifiers and WDM networks. The device combines or separates light at different wavelengths (1310nm/1490nm/1550nm) in a wide wavelength range. It can expand the capacity of a single fiber to achieve bidirectional communication so that widely used in optical network upgrades and expansion, or introduce new comprehensive business, etc.

Wavelength-division multiplexing (WDM) is a fiber-optic communications technology that multiplexes several optical carrier signals onto a single optical fiber. Normal WDM, coarse CWDM, and dense DWDM are the three wavelength patterns used in WDM systems. Because of this tree of different WDM types, one of which is known as “WDM,” the notation “xWDM” is commonly used.

 Features
● Low Insertion Loss & High Isolation
● Low PDL
● Compact Design
● High Reliability and Stability

Applications
● WDM System
● PON Networks
● CATV Links

2.Advantages of WDM Technology

(1) Large transmission capacity can save precious fiber resources. For example, for 16 2.5Gb/s systems, the single-wavelength optical fiber system requires 32 optical fibers, while the WDM system only requires 2 optical fibers.
(2) It is “transparent” to various business signals and can transmit different types of signals. For example, digital signals, analog signals, etc., and can be synthesized and decomposed.
(3) WDM technology is an ideal expansion means. There is no need to lay more optical fibers or use high-speed network components during network expansion. Any new business or capacity expansion can be introduced only by changing the terminal unit and adding optical wavelength.
(4) Build a dynamically reconfigurable optical network, using optical add-drop multiplexers (OADM) or optical cross-connect devices (OXC) at network nodes. It can form an all-optical network with high flexibility, high reliability and high survivability.

3.Specification of WDM

Parameters		Specification	Unit
Operating wavelength		T15/R1314
Transmission band		1540~1570	nm
Reflection wavelength		1260~1360&1480~1500	nm
Insertion Loss	Transmission band	0.8	dB
	Reflection band	0.4	dB
Isolation	Transmission band	30	dB
	Reflection band	15	dB
Passband Ripple		0.5	dB
Polarization Dependent Loss		0.2	dB
Polarization Mode Dispersion		0.1	PS
Return Loss		45	dB
Directivity		50	dB
Maximum Optical Power		500	mW
Operating Temperature		-25～75	℃
Storage Temperature		-25～75	℃
Package Dimension (mm)  (Φ×L)		Φ5.5*L34 or  90*20*10	mm

4.Main types of WDM

（1）CWDM： CWDM stands for coarse wavelength division multiplexing.
（2）DWDM： DWDM is short for dense wavelength division multiplexing. CWDM and DWDM use light to transmit data. Each light pulse transmitted through a fiber cable contains multiple light wavelengths that can be encoded with data from various sources. CWDM can handle up to 18 wavelength channels, while DWDM can handle up to 80.

（3）FWDM: The FWDM series is based on Thin Film Filter technology which is eco-friendly. The device combines or separates light of different wavelengths over a broad wavelength range. They offer low insertion loss, low polarization dependence, high isolation and excellent environmental stability.

（4）PWDM: Passive Wavelength-Division Multiplexing.
（5）AAWG:Athermal AWG(Arrayed Waveguide Grating), or AAWG, is based on silica-on-silicon planar technology. Fibconet provides a series of AAWG DWDM MUX/DEMUX with 24, 32, 40, 44, and 48 channels optional

5.Testing of Our Products

Fibconet providess test report when the products are delivered. Including following ch-aracteristic test data:
– Insertion Loss (room temperature)
– Return Loss (room temperature)
– PPN、SN bar code
– According to Customer demands

6. Dimensional Structure

7.Ordering information

Module	T××	R××	×	××	×	×
Fibconet-	WDM Type	WDM Type	fiber Type	fiber Length	Com	Pass
FWDM	T13=T1310	R13=R1310	B=Bare fiber	05=0.5m	0=None	0=None
	T14=T1490	R14=1490	L=900um Loose Tube	10=1.0m	1=FC/UPC	1=FC/UPC
	T15=T1550	R15=1550			2=FC/APC	2=FC/APC
	T34=T1310&1490	R34=R1310&1490			3=SC/UPC	3=SC/UPC
	T45=T1490&1550	R45=R1490&1550			4=SC/APC	4=SC/APC
					5=LC/UPC	5=LC/UPC
					6=LC/APC	6=LC/APC

8.Packing and Marking

Products will be packaged carefully to prevent damage and characteristic deterioration due to temperature/humidity, mechanical vibration, and shock during transporting.
Following items indicate on the outer packaging surface:
-Customer Product name
-Model
-Serial number
-Other customer information such as contract no., project no., and delivery destination. (if needed)

*Regular package Type(Customization is available):

9.Why Choose Us

① Surface and structure design for the products can be provided to meet a variety of demands.
② 3D sample can be offered before the mass production
③ Third-party service of full-process video audit and inspection of factory and products can be provided.

10.FAQ

① How can we place an order?

After the agreement is made on the product parameters, we will make a proforma invoice for you to confirm.
As soon as advance payment (deposit) is received, we will arrange the production and delivery.
If you have your ship forwarder, we will use your ship forwarder to deliver goods;
While you don’t have a shipping forwarder, we can ship them by our agent shipping company which offers a competitive freight cost.

② What is the quality of your products?

All of our products are of high quality. We promise a 100% recall policy if products are unqualified, and we can write it into our contract.

③ How do you arrange the shipping?

Solution A: Fibconet takes care of everything.
Clients only need to collect cargo in a local port or wait for cargo delivery to their office.
There are two types of shipping methods available: by sea and by air
(Express courier – FedEx/ DHL/UPS/TNT/EMS. We can ship them according to your express account or ship them by our agent company. The delivery time is about four to seven days).
Solution B: Clients assign a Shenzhen logistic company to do the shipping,
Fibconet follows the shipping company’s instructions and finishes the delivery.

④ How can you guarantee the delivery time?

To avoid the delay, we have built a complete and professional procedure system from production to delivery.
We have rich experience in production and delivery.
We can regulate the penalty clause in the contract for the late delay.

⑤ What’s your best price for your passive fiber optic product?

Based on the quality and quantity of goods, we would quote the best matching price for you all the time.Please contact me if you want to get the latest price list.

⑥ What’s your production capacity?

Production of 1000 WDM devices per day.

Be free to contact us for more product information!