Picosecond Pulse Labs Bias Tees are used to supply an active device like an amplifier, laser diode, photodiode, or optical modulator with a bias current or bias voltage while allowing high speed, ultra-broadband signals to pass through with minimum signal degradation. Our Bias Tees have low insertion loss, very broad frequency response, and exceptional time domain performance. For more details about Bias Tees, see AN-1f, “Broadband Coaxial Bias Tees”.