BIDI SFP single mode SFP cleaning kit LC 155M 80km Module
Model type | SFP-155M-BIDI-80KM | Brand | HTF |
Encapsulation | SFP | Data Rate | 155M |
Wavelength | 1490nm-TX/1550nm-RX 1550nm-TX/1490nm-RX | Reach | 80KM |
Cable Type | SMF（9/125µm） | Interface | BIDI LC optical connector |
Tx power | -5~0dBm | Rx Sens | <-33dBm |
Protocols | SFF-8472 MSA compliant &SFF-8431;MSA Compliant | Optical Components | 1490nm DFB laser transmitter and PIN photo-detector |
The effect of dispersion
System performance impairments related to fiber dispersion can be caused by a variety of reasons, two of which are more important: inter-symbol interference, mode allocation noise, and so on.
(1) Inter-symbol interference
Fiber dispersion results in broadening of the transmitted light pulses. The actual received waveform is composed of many line spectra of the laser in the optical module. Even if the receiver can ideally equalize the waveform formed by a single line spectrum, it is staggered because of the different dispersion experienced by the same waveform generated by each line spectrum. , Making the combined waveform different from a single line spectrum waveform, will still cause non-ideal equalization.
(2) Modular distribution noise
This is due to the system damage caused by the fiber dispersion and the spectral characteristics of the laser in the optical module. Although the total power of the laser spectral lines is constant, the power of each spectral line fluctuates randomly. After the various spectral lines of the laser pass through the optical fiber, due to the inherent dispersion of the optical fiber, the spectral lines of different wavelengths have different delays, resulting in different receiving waveforms for different bits and forming a widening of the received pulse.
FAQ
1、Question：Do you offer 40G QSFP+ transceivers that operate at an industrial temperature range?
Answer：Sorry, 40G QSFP+ transceiver that operate at an industrial temperature range are currently not available, but in development. Please stay tuned.
2、Question：What kinds of custom choices are offered in HTF?
Answer：As for customized transceivers, HTF offers regular custom choices such as compatibility, transmission distance, operating temperature, label pattern, label colors and etc. What's more, HTF welcomes any inquiry for customized products and solutions for all need and specifications.
3、Question：Do you ship internationally?
Answer：Yes, we can ship anywhere you would like. If we receive your payment slip, we will ship the goods via our delivery forwarder or on your shipping account number. To calculate the best shipping cost for you, please kindly inform us your post code. If you need us to declare the amount to reducing the import tax, please discuss with our sales on line.
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