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DWDM DFB Laser Optical Transmitter-ELDX Series

This high-performance directly modulated DFB laser module offers up to 8 GHz bandwidth in the DWDM band, ≥18 dBm P-1 output, wide temperature operation, and hermetic butterfly packaging, delivering reliable broadband analog transmission for demanding and customizable applications.
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Product Overview

The DWDM DFB Laser Optical Transmitter - ELDX Series is a high-performance directly modulated DFB laser module, specially designed for broadband analog signal transmission applications. Operating in the DWDM band, this transmitter features a 3dB bandwidth of up to 8GHz, providing high-speed and high-fidelity signal transmission. Its core components including built-in optical isolator, TEC, thermistor, laser diode chip and monitor photodiode are all hermetically sealed in a compact 7*PIN butterfly package, ensuring excellent structural stability and anti-interference performance. With an input P-1 value of no less than 18dBm and a wide operating temperature range from -55℃ to 70℃, the ELDX series has strong environmental adaptability and can work stably in various harsh working conditions. It supports customization according to customer requirements, making it a core device in advanced photonic communication systems and microwave photonic transmission systems.


DWDM DFB Laser Optical Transmitter-ELDX Series


Key Features

Directly Modulated DFB Laser Technology: Adopts advanced direct modulation technology to realize high-speed and low-distortion analog signal transmission, with 3dB bandwidth up to 8GHz.

DWDM Band Operation: Works in the DWDM wavelength band, supporting dense wavelength division multiplexing applications and improving the utilization rate of optical fiber resources.

High Input Power Tolerance: Input P-1 ≥ 18dBm, capable of bearing high-power signal input and ensuring stable output performance.

Hermetic Butterfly Package: 7*PIN butterfly package with hermetic sealing design, effectively isolating external environmental interference and improving the service life of the module.

Excellent Environmental Adaptability: Operating temperature ranges from -55℃ to 70℃, suitable for working in extreme temperature environments with strong stability.


Applications

  • Photonic Communication

In photonic communication systems, the DWDM DFB Laser Optical Transmitter - ELDX Series can realize high-density wavelength division multiplexing transmission, greatly increasing the transmission capacity of a single optical fiber. It is widely used in backbone communication networks and metropolitan area networks, meeting the growing demand for high-bandwidth communication.

  • Analog RF Transmission Link Simulation

For the simulation of analog RF transmission links, this transmitter can accurately generate and transmit RF signals, helping R&D personnel test and verify the performance of RF communication systems. It is an important test equipment in the field of communication technology research and development.

  • Microwave Photonic Transmission System

In microwave photonic transmission systems, the ELDX series can convert microwave signals into optical signals for long-distance transmission, overcoming the limitations of traditional microwave transmission such as short distance and high loss. It is suitable for military communication, satellite communication and other high-end application scenarios.

  • RF Optical Delay Line System

The transmitter can be used in RF optical delay line systems to realize precise control of signal delay. It is widely used in phased array radar, electronic countermeasure and other fields, providing technical support for high-precision signal processing.


Technical Specifications


Parameter

Details

Laser Type

Directly modulated DFB laser

Operating Band

DWDM band

3dB Bandwidth

Up to 8GHz

Input P-1

≥18dBm

Operating Temperature

-55℃ ~ 70℃

Package Type

7*PIN butterfly package (hermetically sealed)

Built-in Components

Optical isolator, TEC, thermistor, laser diode chip, monitor photodiode

Customization

Supported



FAQs

What is the advantage of the DWDM DFB Laser Optical Transmitter in wavelength division multiplexing applications?

The transmitter operates in the DWDM band, which supports dense wavelength division multiplexing technology. It can transmit multiple signals simultaneously on a single optical fiber, greatly improving the utilization rate of optical fiber resources and reducing the construction cost of the communication network.

Can the package of the ELDX series be customized?

Yes, we support customized package design according to customer application scenarios. You can put forward specific requirements for package size, pin definition and other parameters, and our R&D team will provide a personalized solution.

How does the transmitter ensure stable operation in extreme temperature environments?

The module is equipped with a built-in TEC (thermoelectric cooler) and thermistor, which can realize real-time temperature control of the laser chip. The wide operating temperature range from -55℃ to 70℃ ensures that the device can work stably in high and low temperature environments.

Is the transmitter suitable for broadband analog signal transmission?

Absolutely. With a 3dB bandwidth of up to 8GHz, the transmitter is specially designed for broadband analog signal transmission, which can ensure low-distortion transmission of high-frequency analog signals and meet the needs of various broadband communication scenarios.


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