Nominal transmitter output wavelength at room temperature. 16
bit value with byte 60 as high order byte and byte 61 as low
order byte. The laser wavelength is equal to the the 16 bit
integer value in nm. This field allows the user to read the
laser wavelength directly, so it is not necessary to infer
it from the transceiver Code for Electronic Compatibility
(bytes 3 to 10). This also allows specification of wavelengths
not covered in bytes 3 to 10, such as those used in coarse WDM
systems.