# How does the frequency information of RF signal is carried over optic converted output?

I have an RF input signal in the frequency range of 1000MHz to 2000MHz with the power level of 0dBm+/-1dBm throughout the band, this signal needs to be converted to optic signal using RF to optic converter.

I have studied that, based on the input RF signal the RF to optic converter laser diode bias current will be adjusted and accordingly the optical signal intensity will be varied.

Now the question here is how does the frequency information will converted into optical form, Means how the frequency information will be modulated and taken through the converted optical signal?

• if the time varying optical signal intensity follows that time variation of the RF input signal then it encodes the frequency information of the original RF signal more or less faithfully; this is basically the same question of how standard (non-optical) amplitude modulation preserves frequency information – oldrinb Jul 20 '16 at 12:35