thermal_min_power

ofiber.noise.thermal_min_power(bitrate, responsivity, capacitance, T, snr)

Return the minimum optical power needed to achieve a signal-to-noise of 1.

The assumption is that thermal noise dominates.

Parameters:

• bitrate – bits per second (Hz)

• responsivity – photodetector response (A/W)

• capacitance – photodetector capacitance (Farads)

• T – temperature (Kelvin)

• snr – signal to noise ratio (–)

Returns:

optical power (W)