Fujikura Ltd.

  1. Home
  2. Research Fields
  3. Technologies to connect the world
Technologies to connect the world

Technologies to connect the world

Optical system equipment

Optical fiber fusion splicers/ optical fiber cleavers/ optical fiber identifiers

In the wake of speedier and larger-volume communications, applications for optical fiber are burgeoning, especially in regard to telecommunications and data communications. Our optical system equipment, which includes optical fiber fusion splicers used when laying or maintaining optical fibers, measurement devices such as optical fiber identifiers and optical transceivers, various sets of LAN equipment capable of supporting even the Internet, and video transmission devices for CATV have received solid evaluations in a wide range of fields.
In particular, Fujikura, which has been developing excellent fusion splicing systems in optical fiber connection by always making full use of leading-edge technologies, has developed and put into practical use a core alignment fusion splicer ahead of the rest of the world, and has also been leading the world in terms of technical clout and manufacturing capabilities for various types of fusion splicers and peripheral devices ever since.

Single optical fiber fusion splicer
Single Fiber Fusion Splicer FSM-60S
World's best-selling fusion splicer
powered with a core alignment
(PAS: Profile Alignment System) function
Mass fusion splicer
Ribbon Fiber Fusion Splicer FSM-60R
High performance fusion splicer
capable of splicing ribbons up to 12 fibers at once
Ultra compact fusion splicer
Ultra compact mass fusion splicer with
the capability to splice single fibers
as well as ribbons up to 4 fibers
Mass fusion splice
Fusion Splice of Ribbon Fiber
Optical fiber cleaver 
Optical Fiber Cleaver CT-30 
Palm size optical fiber cleaver
Optical fiber identifier 
Optical Fiber Identifier FLS-20T & FID-25R 
Measurement device used for identifying
fiber optic and measuring power loss when
laying optical fiber


IP security


VPN (Virtual Private Network) technology is indispensable to efficiently build enterprise networks using the Internet. Security technologies, such as those for authentication and encryption, are required to communicate important data through the Internet, a tool accessed by the general public. High-performance hardware and software are needed to transfer data at high speed while performing complicated encryption and decoding processes. We are working to develop hardware and software required for these VPN devices.

NGN support

The Internet is a best-effort network. VPN through the Internet has limitations to provide QoS (Quality of Service) demanded by users. On the other hand, NGNs (Next Generation Networks) guarantee the demanded QoS. VPN through NGN could be applicable to critical missions. The NGN-enabled VPN devices are required to have a function to negotiate QoS with an NGN service. Fujikura is developing software and hardware to build VPN through NGN.

    Ethernet VPN unit
Flebo Next Ethernet VPN Unit
Unit to build an Ethernet VPN by combining with FLET's services from NTT East and NTT West.
Optical communication devices for access networks

Optical Ethernet technologies

Fujikura has made every possible effort to develop software and hardware for LAN equipment since making 10BASE-5 transceivers commercially available in 1987. It has regarded the development of technologies and products to apply Ethernet to broadband communications with optical fiber as the center of development from the beginning, and has continued to supply optical Ethernet products such as media converters and Ethernet PON devices, now widely in use, from early on.

GE-PON equipment

PON (Passive Optical Network: optical fiber network ramifying in a radial pattern) system has become the mainstream among FTTH access networks today, and many GE-PON (Gigabit Ethernet PON) systems are being widely deployed in Japan. The functions required for the equipment depend on the system scales and operation methods. Fujikura has developed a lineup of FNP3000 series suitable for the large scale operation of PPPoE, FNP4000 series equipped with DHCP snooping and IP address filtering functions appropriate to DHCP operations, in addition to FNP7000 chassis series with embedded L2 switches, thereby providing application solutions.

LAN equipment GE-PON
LAN equipment : Gigabit Ethernet - Passive Optical Network Equipment
Device performing data communication services via optical fiber
LAN equipment Media converter 
LAN equipment : Media Converter 
Device to connect remote local area networks via optical fiber
RZ-DQPSK 40Gbit/s Full-Band Tunable Optical Transponders

We have developed a 40 Gbit/s long-distance optical interface module using multi-level phase modulation. As in conventional amplitude modulation, it is difficult to attain the required characteristics such as OSNR, dispersion tolerance, and optical bandwidth, we have used the RZ-DQPSK format to improve these characteristics. The module has an optional semiconductor optical amplifier, which amplifies the optical output signal to the desired power level. This option eliminates the need for an external Erbium Doped Fiber Amplifier (EDFA), which saves space and reduces the cost of the system.
  The optical interface module supports Dense Wavelength Division Multiplexing (DWDM) that conforms to the industry standard 40G 300 pin Multi Source Agreement (MSA), and operates at dual rates (43.02 and 44.57 Gbit/s).

RZ-DQPSK 40Gbit/s full-band
tunable optical transponder
RZ-DQPSK Optical transmitting waveform
10 Gbit/s full-band tunable optical transponders

Our DWDM (Dense Wavelength-Division-Multiplexing) 10 Gbit/s optical transponder in compliance with the industry standard 300-pin MSA (Multi-Source Agreement) can transmit data over a single-mode optical fiber of up to 80 km. It embeds multiplexing and demultiplexing functions of electric signals and provides a parallel interface to the optical signals of 10 Gbit/s and the electric signals of 622 Mbit/s×16 bit.
  One of the greatest features is that it is equipped with a variable wavelength function by adopting a tunable laser diode. It can set 88 wavelengths at intervals of 0.4 nm (50 GHz) in each of the C-band or L-band and switches the wavelengths with remote control.
As the existing transponders adopt laser diodes of a fixed wavelength, transponders with different laser wavelength to each other must be prepared for WDM systems. As this transponder enables a desired wavelength to be set with one unit, any wavelength can be assigned within an optical network system. In addition, as one transponder unit can support multiple wavelengths, it provides overwhelming advantages to product variety reduction and management costs reduction for maintenance for telecom carriers.

Optical spectrum 10 Gbit/s full-band tunable optical transponder
10 Gbit/s DWDM XFP optical transceivers

Fujikura is developing DWDM-enabled optical transceivers that are in compliance with XFP MSA (Multi-Source Agreement). These are optical transceivers, supporting 100 GHz-DWDM, which feature a smaller size, low power consumption and long-distance transmission. They have a high dispersion tolerance on the side of transmitter (TX) on which an external modulator is adopted and provide high sensitivity on the side of receiver (RX) on which an avalanche photodiode (APD) is adopted. A single unit of this product can support transmission up to 80 km. It is possible to apply the product to longer distance transmission by combining it with DCF (dispersion-compensating fiber) and an optical amplifier.

Optical transmitting waveform 0 Gbit/s DWDM XFP optical transceiver

About R&D please inquire from here.