17 products
EPON OLT Optical Transceiver - 1.25Gbps SFF Module
1 x ¥43,645.25 = ¥43,645.2510Gb/s Pluggable SFP+ Transceiver - 1310nm 10km
1 x ¥17,606.05 = ¥17,606.0510Gb/s Pluggable SFP Transceiver - 850nm
1 x ¥10,208.55 = ¥10,208.55EPON ONU Optical Transceiver - 1.25Gbps 20km
1 x ¥22,044.55 = ¥22,044.5540-Channel 100GHz Athermal AWG Module
1 x ¥190,855.50 = ¥190,855.5010Gb/s SFP Transceiver - DWDM, 40km Reach
1 x ¥116,880.50 = ¥116,880.50CWDM DFB Optical Laser Source
1 x ¥324,010.49 = ¥324,010.49Handheld Three Wavelength Source (1310/1550/1625)
1 x ¥174,581.00 = ¥174,581.00Optical Fiber Splicing Protector - Heat Shrinkable
1 x ¥5,903.20 = ¥5,903.20Super Wide Spectrum Light Source - SLED
1 x ¥0.00 = ¥0.00Mini Broadband ASE Light Source - 1060nm
1 x ¥1,109,624.98 = ¥1,109,624.9810Gb/s Surface-Mount PIN/TIA Detector
1 x ¥0.00 = ¥0.00EPON ONU Optical Transceiver - 1.25Gbps 10km
1 x ¥9,601.95 = ¥9,601.95Optical Fiber Fusion Splicer
1 x ¥738,270.48 = ¥738,270.48DWDM DFB Optical Laser Source
1 x ¥547,414.99 = ¥547,414.99Nx1 Multimode Power Combiner for Fiber Lasers
1 x ¥0.00 = ¥0.00Variable Optical Attenuators - Adapter Type
1 x ¥2,957.52 = ¥2,957.52- ¥3,313,605.01
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by Technology Explained Date Added: Thursday 23 February, 2012Compared to single mode optical fiber, multimode optical fiber has following feature:
The core diameter of the fiber is much larger. This means multiple transmission modes are permitted in the fiber at the wavelength of the light.
A larger fiber core means larger numerical aperture (NA). So multimode fiber can accept light from wider incident angle. This makes it easier to couple light into the fiber. Hence the cost of optical transmitters for multimode fiber links is lower. Typical wavelengths used in such link are 850nm and 1310nm. Low cost laser diodes at those wavelengths, or even low cost LEDs (light emitting diodes), can be used as light source.
Because of multiple transmission modes, there is a limit caused by mode dispersion on the maximum signal bandwidth and transmission distance product achievable for the multimode fiber. Mode dispersion is that different transmission mode has different propagation constant inside the fiber. Optical pulse is broadened by mode dispersion along the fiber. The longer the transmission distance, more severe the broadening on the optical pulse becomes.
The limit from mode dispersion restricts the application of multimode fiber to short reach networks, such as 2km for 100Mb Ethernet link, or 550m for 1Gb Ethernet. Multimode fibers are mostly used in high speed point-to-point connections within a single building or a small campus.
Currently, higher bit-rate multimode fiber transceivers are developed, for example 10Gb transceivers. Although the transmission distance is further shortened at such bit-rate, multimode fiber can play a role at high speed backbone networks.Rating: [5 of 5 Stars!]Our Offers
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