MITSUBISHI CHIPS

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ML925B40F (CAN), FU-60RDF (TOSA)

Capable of 2.5Gbps, 100km transmission in a wide temperature range

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	Outline

As broadband becomes popular in the subscriber system, the traffic volume in the metro system is increasing. Laser diodes used in the metro system require wide temperature range operation in order to achieve cost reduction and miniaturization and, at the same time, require wavelength line-up capable of CWDM (Coarse Wavelength division Multiplexing) for high capacity communication. We have developed a Distributed-Feedback Laser Diode (DFB-LD) for CWDM capable of 2.5Gbps, 100km transmission in a wide temperature range of 0–85°C, which is perfect for such usage.

	Features

		Capable of 2.5Gbps, 100km transmission Achieved transmission characteristics favorable in wide temperature range (0–85) because stable single-wavelength operation is made possible by adopting λ/4 phase shift type diffraction grating.
		CWDM capable wavelength line-up Achieved product line-up of 8 wavelengths, 1470–1610nm (20nm intervals) used in CWDM.
		Package Lined-up Standard CAN package and TOSA (Transmitter Optical Sub Assembly)

	Applications

For pluggable light transceivers used in such as Metro system (SFP.)

	Main Specifications

		Operation in 0–85°C
		2.5Gbps, 100km transmission capable
		8 wavelengths, 147–1610nm (20nm interval) line-up
		2 kind of packages (CAN and TOSA)

	Future Deployment

We think promotion of higher efficiency of elements and operation in wider temperature range will be required more and more in the future. Therefore, we plan to promote development of elements capable of higher efficiency and operation in wider temperature ranges.

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