XMD optical module
It consists of a half-wave coupled V-cavity laser with only three electrodes: one for gain and direct modulation, one for channel selection corresponding to the ITU grid, and the third for fine tuning when needed. The XMD-MSA specifications are designed for applications from short-to-long reach transmission functions. XLMD Multi-Source Agreement (MSA) was formed in March, 2007 to establish compatible sources of 40Gbit/s Transmitter Optical Sub-Assembly (TOSA) and Receiver Optical Sub-Assembly (ROSA) for use in the 40 Gbit/s transceivers. Compared to LEDs, semiconductor lasers have lower power consumption, higher output and can be used with optical systems having a higher maximum aperture.
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