Add Drop Modules for WDM Network

Features  

(1) Optical Add/Drop Multiplexing (OADM)

(2) Passive OADM Add/drop 2/4/8 channels at remote sites

(3) Low insertion loss for C-band channels

(4) DWDM C-Band, 100GHz ITU Grid (0.8nm spacing)

(5) Single-side (east or west) or dual-side (east and west)

(6) Completely passive, no power or maintenance required

(7) Ideal for DWDM ring structures or daisy chain applications

(8) Improves capacity exhaust in fiber-constrained situations

(9) Conserves or reclaims fiber with DWDM

(10) Lowest cost solution on the market

(11) Highly flexible and scalable

Optical Specifications

Channels List

DWDM  Dual Fiber DUAL-SIDED OADM 1U 19inch Rack

Questions & Answers

Q1: What is the minimum order?

A1: We accept one piece for standard products. If require OEM, will see detailed requirements and confirm MOQ to you from our sales department.

Q2: Can we get the free sample?

A2: Sorry, generally we would not provide the free sample. You can buy one to test first. 

Q3: Do you provide OEM / ODM?

A3: Yes, we can provide OEM / ODM customized service according to our customers' various application and demands.

Q4: What warranty for the products?

A4: According to our warranty policy, we will provide 12 months warranty time from the shipment date for our all products.

Q5. How about Deliver, Shipping and Serving?

A5: Competitive selling prices;

Warranty: 1-3 years warranty;

Excellent after-sale service;

Samples are available for testing;

Reply your inquiry within 24 hours;

You can get our support online at 24*7;

Big capability of manufacture and fast delivery time;

With experienced technical team supporting;

Customized label and package, ODM and OEM service offered;

100% new materials for production and 100% reliable quality.

Q6: How many types of WDM? 

A6: There are two types of WDM today:

(1) Coarse WDM (CWDM): WDM systems with fewer than eight active wavelengths per fiber. CWDM is defined by wavelengths. DWDM (see below) is defined in terms of frequencies. DWDM’s tighter wavelength spacing fits more channels onto a single fiber, but cost more to implement and operate.

CWDM is for short-range communications, so it employs wide-range frequencies with wavelengths spread far apart. Standardized channel spacing permits room for wavelength drift as lasers heat up and cool down during operation. CWDM is a compact and cost-effective option when spectral efficiency is not an important requirement.

(2) Dense WDM (DWDM): DWDM is for systems with more than eight active wavelengths per fiber. DWDM dices spectrum finely, fitting 40-plus channels into the same frequency range used for two CWDM channels.

DWDM is designed for long-haul transmission, with wavelengths packed tightly together. Vendors have found various techniques for cramming 40, 88, 96, or 120 wavelengths of fixed spacing into a fiber. When boosted by Erbium Doped-Fiber Amplifiers (EDFAs)—a performance enhancer for high-speed communications—these systems can work over thousands of kilometers. For robust operation of a system with densely packed channels, high-precision filters are required to peel away a specific wavelength without interfering with neighboring wavelengths. DWDM systems must also use precision lasers that operate at a constant temperature to keep channels on target.

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