1550nm Directly Modulated Optical Transmitter

1550nm Directly Modulated Optical Transmitter

Product Overview of 1550nm Directly Modulated Optical Transmitter

ST1550IL 1550nm directly modulated optical transmitter for long distance transmission adopts advanced electric dispersion compensation technology based on the standard model. The standard model will create serious chirp distortion (the bias current of the laser is modulated by the signal, and the optical frequency is shifted and jittered). The distortion becomes more and more serious with the increase of transmission distance, transmission bandwidth and the number of channels. This device adopts the advanced technology of EMD compensation. According to the actual transmission distance, it can accurately compensate in 1km step. The max compensation distance can reach 50km. It is mainly used in large area coverage and long-distance point-to-point transmission of secondary optical fiber network. It provides high-quality but low-cost solution to realize triple play and FTTx  transmission system.

Technical parameters of 1550nm Directly Modulated Optical Transmitter

1.The transmission distance is adjustable, max distance can reach 50km.

2.It adopts original low chirp and high linearity DFB laser as signal source.

3.The perfect pre-distortion circuit ensures perfect performance of CTB and CSO in high standard CNR value.

4.Automatic gain (AGC) control enables stable output in different RF input levels.

5.Different networks can be optimized by OMI adjustment.

6.Fully automatic case temperature control, intelligent fans, the fans starts to work when case temperature reaches 30 ℃.

7.Built -in dual standby power supply,  hot plug in/out and automatic switching supported.

8.The operating parameters of the whole machine are controlled by  microprocessor, and the LCD status display on the front panel has many functions such as laser status monitoring, parameter display, fault alarm, network management, etc.; once the operating parameters of the laser deviate from the allowed range set by the software, the system will alarm promptly.

9. Standard RJ45 interface provided, supporting remote network management of SNMP and WEB.

Main Technical  Index of 1550nm Directly Modulated Optical Transmitter

Main Applications of 1550nm Directly Modulated Optical Transmitter

1.CATV System

2. Secondary fiber networks,  point to point in long distance（≤50Km）

3 .FTTH、FTTx PON、RFOG、Triple-play

4. DWDM System

5. Network upgrading and capacity expansion based on existing optical fiber resource.

Notice

1. Before installation or operation of unit, please carefully go through this manual.

2. ST1550I Series Transmitters should be serviced only by qualified personnel.

3. Before proceeding with installation and/or operation of transmitter, please assure that transmitter is well earthed.

4. ST1550I Series transmitters are Class III laser products. Use of controls, adjustments, and procedures other than those specified herein may result in hazardous laser radiation exposure.

Application of 1550nm Directly Modulated Optical Transmitter

Other products

Company introduction and certificate

We have more than 100 staff, 10% of them are senior technicians. With more than 1,000 square meters standards production assembling lines, we have strict QC procedures. Each unit of our product will go through 3 layer QC procedures, material checking before production, stabililty and performance testing after production, packing detection before delivery.

Most of our products are exported to South America, Russia, and North European countries. Currently, Softel has its branch office in Mexico and will launch another office in Colombia, continuing supplying for numerous agents, integrated dealers, and equipment producers all over the world.

Through keen international business competition in good faith, all of our staff members feel a big accomplishment & work under heavy responsibility. In addition, we are much proud of providing our invaluable customers with our high quality, high reliability, high efficiency, and competitive products.

FAQ

1. What are the payment terms that you support?

Usually, we accept T/T, PayPal, Western Union, and Alibaba Trade Assurance. You can select the terms of payment which is more convenient for you.

2. What about the lead time?

Usually, if there's stock, we ship the goods within 3~5 working days after the deposit is confirmed. If it is out of stock, the lead time depends.

3. How about the shipping?

When the package is small, we normally choose FedEx, DHL, TNT, and UPS and so on, while the goods have high weight and volume, we suggest using air or sea shipment.

4. How can I place an order?

(1) Negotiation is agreed upon for the product price and specifications.

(2) The Proforma invoice will be sent for confirmation.

(3) After the agreement on the proforma invoice, the customer makes the deposit.

(4) Manufacturing will be started as soon as the payment is confirmed by our bank.

(5) Ship out the goods within the agreed delivery deadline.

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